treewide: Fix typos in printk

This patch fix spelling typos found in printk
within various part of the kernel sources.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index b096f8b..3692dd5 100644
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -386,7 +386,7 @@
 		if (test_bit(boffset / SM_SECTOR_SIZE, &invalid_bitmap)) {
 
 			sm_printk("sector %d of block at LBA %d of zone %d"
-				" coudn't be read, marking it as invalid",
+				" couldn't be read, marking it as invalid",
 				boffset / SM_SECTOR_SIZE, lba, zone);
 
 			oob.data_status = 0;