chore(versal): add missing dot at the end of sentence

Add missing dot at the end of sentence.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Change-Id: I356e65fd8c572c12795e3492dd02d73f48cb4b67
diff --git a/plat/xilinx/versal/pm_service/pm_svc_main.c b/plat/xilinx/versal/pm_service/pm_svc_main.c
index b7d73db..14329dc 100644
--- a/plat/xilinx/versal/pm_service/pm_svc_main.c
+++ b/plat/xilinx/versal/pm_service/pm_svc_main.c
@@ -253,7 +253,7 @@
  *
  * These EEMI calls performs functionality that does not require
  * IPI transaction. The handler ends in TF-A and returns requested data to
- * kernel from TF-A
+ * kernel from TF-A.
  */
 static uintptr_t TF_A_specific_handler(uint32_t api_id, uint32_t *pm_arg,
 				       void *handle, uint32_t security_flag)