arm/arm64: KVM: Add hook for C-based stage2 init

As we're about to move the stage2 init to C code, introduce some
C hooks that will later be populated with arch-specific implementations.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 689d4c9..fe86cf9 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -332,6 +332,10 @@
 		     hyp_stack_ptr, vector_ptr);
 }
 
+static inline void __cpu_init_stage2(void)
+{
+}
+
 static inline void kvm_arch_hardware_disable(void) {}
 static inline void kvm_arch_hardware_unsetup(void) {}
 static inline void kvm_arch_sync_events(struct kvm *kvm) {}