arch-arm: Fix ArmKVM build

arch-arm: Fix ArmKVM build

BaseInterrupts don't have a checkRaw method.
This was breaking gem5 compilation on a Arm machine

Change-Id: I8717b1bcf64ed14e8a0f63a9dcaca6041dbea4d3
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/25431
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>