video: Fix typo in drivers/video

Correct spelling typo in debug messages and comments
within drivers/video.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/video/smscufx.c b/drivers/video/smscufx.c
index 2e4c249..538e5ef 100644
--- a/drivers/video/smscufx.c
+++ b/drivers/video/smscufx.c
@@ -1002,7 +1002,7 @@
 	/* TODO: Help propose a standard fb.h ioctl to report mmap damage */
 	if (cmd == UFX_IOCTL_REPORT_DAMAGE) {
 		/* If we have a damage-aware client, turn fb_defio "off"
-		 * To avoid perf imact of unecessary page fault handling.
+		 * To avoid perf imact of unnecessary page fault handling.
 		 * Done by resetting the delay for this fb_info to a very
 		 * long period. Pages will become writable and stay that way.
 		 * Reset to normal value when all clients have closed this fb.
@@ -1466,7 +1466,7 @@
 	/* all FF's in the first 16 bytes indicates nothing is connected */
 	for (i = 0; i < 16; i++) {
 		if (edid[i] != 0xFF) {
-			pr_debug("edid data read succesfully");
+			pr_debug("edid data read successfully");
 			return EDID_LENGTH;
 		}
 	}