KVM: arm64: vgic: Replace kernel.h with the necessary inclusions

arm_vgic.h does not require all the stuff that kernel.h provides.
Replace kernel.h inclusion with the list of what is really being used.

Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: andy-shev

include/kvm/arm_vgic.h

@@ -5,9 +5,11 @@
 #ifndef __KVM_ARM_VGIC_H
 #define __KVM_ARM_VGIC_H
 
-#include <linux/kernel.h>
+#include <linux/bits.h>
 #include <linux/kvm.h>
 #include <linux/irqreturn.h>
+#include <linux/kref.h>
+#include <linux/mutex.h>
 #include <linux/spinlock.h>
 #include <linux/static_key.h>
 #include <linux/types.h>