KVM: PPC: Book3S: Fix typo in top comment about locking

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/kvm/book3s_xics.c

@@ -41,7 +41,7 @@
  * =======
  *
  * Each ICS has a spin lock protecting the information about the IRQ
- * sources and avoiding simultaneous deliveries if the same interrupt.
+ * sources and avoiding simultaneous deliveries of the same interrupt.
  *
  * ICP operations are done via a single compare & swap transaction
  * (most ICP state fits in the union kvmppc_icp_state)