arch-arm: Remove SWP and SWPB instructions
The SWP and SWPB instructions have been removed from AArch32. It was
previously (ARMv7) possible to enable them with the ID_ISAR0.Swap bits,
which are now hardcoded to 0b0000 (SWP and SWPB not implemented)
Change-Id: Ic32b534454a7e0f7494a6f0b5e11182c65b3fe24
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/15815
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>