Fix misspellings of "whether" in comments.

"Whether" is misspelled in various comments across the tree; this
fixes them. No code changes.

Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/mtd/maps/plat-ram.c

@@ -219,7 +219,7 @@ static int platram_probe(struct platform_device *pdev)
 
 	platram_setrw(info, PLATRAM_RW);
 
-	/* check to see if there are any available partitions, or wether
+	/* check to see if there are any available partitions, or whether
 	 * to add this device whole */
 
 	err = mtd_device_parse_register(info->mtd, pdata->probes, NULL,