style: change C/C++ source permissions to noexec

Several files in the repository were tracked with execute permissions
even though the files are just normal C/C++ files (and the one .isa).

Change-Id: I976b096acab4a1fc74c5699ef1f9b222c1e635c2
Reviewed-on: https://gem5-review.googlesource.com/7241
Reviewed-by: Gabe Black <gabeblack@google.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
diff --git a/ext/mcpat/cacti/subarray.cc b/ext/mcpat/cacti/subarray.cc
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diff --git a/ext/mcpat/cacti/uca.cc b/ext/mcpat/cacti/uca.cc
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diff --git a/src/arch/arm/stage2_lookup.cc b/src/arch/arm/stage2_lookup.cc
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diff --git a/src/arch/arm/stage2_lookup.hh b/src/arch/arm/stage2_lookup.hh
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diff --git a/src/arch/arm/stage2_mmu.cc b/src/arch/arm/stage2_mmu.cc
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diff --git a/src/arch/arm/stage2_mmu.hh b/src/arch/arm/stage2_mmu.hh
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diff --git a/src/arch/mips/bare_iron/system.cc b/src/arch/mips/bare_iron/system.cc
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diff --git a/src/arch/mips/bare_iron/system.hh b/src/arch/mips/bare_iron/system.hh
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diff --git a/src/arch/mips/dsp.cc b/src/arch/mips/dsp.cc
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diff --git a/src/arch/mips/dsp.hh b/src/arch/mips/dsp.hh
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diff --git a/src/arch/mips/dt_constants.hh b/src/arch/mips/dt_constants.hh
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diff --git a/src/arch/mips/interrupts.cc b/src/arch/mips/interrupts.cc
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diff --git a/src/arch/mips/interrupts.hh b/src/arch/mips/interrupts.hh
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diff --git a/src/arch/mips/isa/formats/dsp.isa b/src/arch/mips/isa/formats/dsp.isa
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diff --git a/src/arch/mips/mt.hh b/src/arch/mips/mt.hh
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diff --git a/src/arch/mips/mt_constants.hh b/src/arch/mips/mt_constants.hh
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diff --git a/src/arch/mips/pagetable.hh b/src/arch/mips/pagetable.hh
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diff --git a/src/arch/mips/pra_constants.hh b/src/arch/mips/pra_constants.hh
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diff --git a/src/arch/mips/system.cc b/src/arch/mips/system.cc
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diff --git a/src/arch/mips/system.hh b/src/arch/mips/system.hh
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diff --git a/src/arch/mips/vtophys.cc b/src/arch/mips/vtophys.cc
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diff --git a/src/arch/power/vtophys.cc b/src/arch/power/vtophys.cc
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diff --git a/src/base/loader/hex_file.cc b/src/base/loader/hex_file.cc
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diff --git a/src/base/loader/hex_file.hh b/src/base/loader/hex_file.hh
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diff --git a/src/cpu/o3/isa_specific.hh b/src/cpu/o3/isa_specific.hh
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diff --git a/src/cpu/o3/thread_context.cc b/src/cpu/o3/thread_context.cc
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diff --git a/src/cpu/o3/thread_context.hh b/src/cpu/o3/thread_context.hh
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diff --git a/src/cpu/o3/thread_context_impl.hh b/src/cpu/o3/thread_context_impl.hh
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diff --git a/src/dev/mips/access.h b/src/dev/mips/access.h
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diff --git a/src/dev/mips/malta.cc b/src/dev/mips/malta.cc
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diff --git a/src/dev/mips/malta.hh b/src/dev/mips/malta.hh
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diff --git a/src/dev/mips/malta_cchip.cc b/src/dev/mips/malta_cchip.cc
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diff --git a/src/dev/mips/malta_cchip.hh b/src/dev/mips/malta_cchip.hh
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diff --git a/src/dev/mips/malta_io.cc b/src/dev/mips/malta_io.cc
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diff --git a/src/dev/mips/malta_io.hh b/src/dev/mips/malta_io.hh
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diff --git a/src/dev/mips/maltareg.h b/src/dev/mips/maltareg.h
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diff --git a/src/mem/snoop_filter.cc b/src/mem/snoop_filter.cc
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diff --git a/src/mem/snoop_filter.hh b/src/mem/snoop_filter.hh
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