KVM: arm/arm64: vgic: Fix some comments typo

Fix various comments, including wrong function names, grammar mistakes
and specification references.

Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20191029071919.177-3-yuzenghui@huawei.com
diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c
index 48307a9..e69c538 100644
--- a/virt/kvm/arm/vgic/vgic-v3.c
+++ b/virt/kvm/arm/vgic/vgic-v3.c
@@ -357,7 +357,7 @@ int vgic_v3_lpi_sync_pending_status(struct kvm *kvm, struct vgic_irq *irq)
 }
 
 /**
- * vgic_its_save_pending_tables - Save the pending tables into guest RAM
+ * vgic_v3_save_pending_tables - Save the pending tables into guest RAM
  * kvm lock and all vcpu lock must be held
  */
 int vgic_v3_save_pending_tables(struct kvm *kvm)