arm64: Combine kvm.c

Glue together the ARM common and previously arm64-specific bits into one
source file.

Acked-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20250404165233.3205127-4-oliver.upton@linux.dev
Signed-off-by: Will Deacon <will@kernel.org>
5 files changed