arm64: kvm: Split hyp/sysreg-sr.c to VHE/nVHE

sysreg-sr.c contains KVM's code for saving/restoring system registers, with
some parts shared between VHE/nVHE. These common routines are moved to
sysreg-sr.h, VHE-specific code is left in sysreg-sr.c and nVHE-specific code is
moved to nvhe/sysreg-sr.c.

Signed-off-by: David Brazdil <dbrazdil@google.com>
10 files changed