arch-arm: Add TypeAtomicOp class to be used by new atomic instructions

Creating a new object TypeAtomicOp that will be used by the atomic
instructions following gem5 AMO feature.

Change-Id: If082b596fb37d7a1cb569a4320c23505591df6a5
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/19810
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
1 file changed