systemc: Add deprecated sc_time constructors.

Change-Id: Iffae751272302ff2996258a1ab31b086e12bbb8d
Reviewed-on: https://gem5-review.googlesource.com/11275
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
2 files changed