mtd: rename MTD_OOB_* to MTD_OPS_*

These modes are not necessarily for OOB only. Particularly, MTD_OOB_RAW
affected operations on in-band page data as well. To clarify these
options and to emphasize that their effect is applied per-operation, we
change the primary prefix to MTD_OPS_.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 5c0fe0d..071b634 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -1104,7 +1104,7 @@
 	 * The BCH will use all the (page + oob).
 	 * Our gpmi_hw_ecclayout can only prohibit the JFFS2 to write the oob.
 	 * But it can not stop some ioctls such MEMWRITEOOB which uses
-	 * MTD_OOB_PLACE. So We have to implement this function to prohibit
+	 * MTD_OPS_PLACE_OOB. So We have to implement this function to prohibit
 	 * these ioctls too.
 	 */
 	return -EPERM;