FROMGIT: 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 <andriy.shevchenko@linux.intel.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220104151940.55399-1-andriy.shevchenko@linux.intel.com
(cherry picked from commit 6c9eeb5f
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git

 next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I90713958b02f5d11e925c27716d478744796acf8