arch,cpu: Use PCStateBase in StaticInst::branchTarget

Change-Id: I1b8a2ea088b52252601968b1b1083ed712a5bfd6
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/52045
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Gabe Black <gabe.black@gmail.com>
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
17 files changed