systemc: Add the deprecated sc_trace_delta_cycles function.

This function enables or disables tracing of delta cycles in a
particular trace file.

Change-Id: I53164a792856d071de1fefc76977cca8eb5fd735
Reviewed-on: https://gem5-review.googlesource.com/11267
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
3 files changed