linux-imx

KVM: arm/arm64: Move kvm_is_write_fault to header file

Move this little function to the header files for arm/arm64 so other
code can make use of it directly.

Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>