arch-arm: Reimplement decodeAArch64SysReg using new decode map

Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Change-Id: Ief6c9d666b01248ea4e01414f575a5c5758618ba
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/55605
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
1 file changed