intel/broadwell: Spelling fixes

Change-Id: I2f970c6970b4996fcefbde89332210f5a1afe836
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/7702
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
diff --git a/src/soc/intel/broadwell/smihandler.c b/src/soc/intel/broadwell/smihandler.c
index 85a4f47..064a9dc 100644
--- a/src/soc/intel/broadwell/smihandler.c
+++ b/src/soc/intel/broadwell/smihandler.c
@@ -537,7 +537,7 @@
 				southbridge_smi[i]();
 			} else {
 				printk(BIOS_DEBUG,
-				       "SMI_STS[%d] occured, but no "
+				       "SMI_STS[%d] occurred, but no "
 				       "handler available.\n", i);
 			}
 		}