mtd: nand: nand_base: Convert EINVAL into ENOTSUPP

Convert the EINVAL error into ENOTSUPP when the GET/SET_FEATURES
is not supported.

Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com>
Acked-by: Jagan Teki <jagan@openedev.com>
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 64e4621..9094f85 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -3041,7 +3041,7 @@
 	if (!chip->onfi_version ||
 	    !(le16_to_cpu(chip->onfi_params.opt_cmd)
 	      & ONFI_OPT_CMD_SET_GET_FEATURES))
-		return -EINVAL;
+		return -ENOTSUPP;
 #endif
 
 	chip->cmdfunc(mtd, NAND_CMD_SET_FEATURES, addr, -1);
@@ -3070,7 +3070,7 @@
 	if (!chip->onfi_version ||
 	    !(le16_to_cpu(chip->onfi_params.opt_cmd)
 	      & ONFI_OPT_CMD_SET_GET_FEATURES))
-		return -EINVAL;
+		return -ENOTSUPP;
 #endif
 
 	chip->cmdfunc(mtd, NAND_CMD_GET_FEATURES, addr, -1);