m68k: fix comment typo 'occcured'

The patch below changes a typo occcured to occurred in two comments.
Signed-off-by: NJustin P. Mattock <justinmattock@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

arch/m68k/include/asm/MC68EZ328.h

@@ -1047,7 +1047,7 @@ typedef volatile struct {
 
 #define WATCHDOG_EN	0x0001	/* Watchdog Enabled */
 #define WATCHDOG_ISEL	0x0002	/* Select the watchdog interrupt */
-#define WATCHDOG_INTF	0x0080	/* Watchdog interrupt occcured */
+#define WATCHDOG_INTF	0x0080	/* Watchdog interrupt occurred */
 #define WATCHDOG_CNT_MASK  0x0300	/* Watchdog Counter */
 #define WATCHDOG_CNT_SHIFT 8
 

arch/m68k/include/asm/MC68VZ328.h

@@ -1143,7 +1143,7 @@ typedef struct {
 
 #define WATCHDOG_EN	0x0001	/* Watchdog Enabled */
 #define WATCHDOG_ISEL	0x0002	/* Select the watchdog interrupt */
-#define WATCHDOG_INTF	0x0080	/* Watchdog interrupt occcured */
+#define WATCHDOG_INTF	0x0080	/* Watchdog interrupt occurred */
 #define WATCHDOG_CNT_MASK  0x0300	/* Watchdog Counter */
 #define WATCHDOG_CNT_SHIFT 8