southbridge/amd agesa & cimx spelling fixes

Trivial fixes, but the editor highlights them, and it's easy to go
through a bunch of files while I'm otherwise idle.

Change-Id: I5d2d4ba098d2a95f7643f000f4b48b3349a8e6cf
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/7839
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
diff --git a/src/southbridge/amd/agesa/hudson/smihandler.c b/src/southbridge/amd/agesa/hudson/smihandler.c
index e762d0b..d1b661b 100644
--- a/src/southbridge/amd/agesa/hudson/smihandler.c
+++ b/src/southbridge/amd/agesa/hudson/smihandler.c
@@ -65,7 +65,7 @@
 
 	/* Only Bits [23:0] indicate GEVENT SMIs. */
 	if (status & gevent_mask) {
-		/* A GEVENT SMI occured */
+		/* A GEVENT SMI occurred */
 		if (mainboard_smi_gpi)
 			mainboard_smi_gpi(status & gevent_mask);
 	}