spi: Rename op_mode_rx to mode_rx

Since spi rx mode macro's are renamed to simple and
meaninfull, this patch will rename the respective
structure members.

Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Tested-by: Mugunthan V N <mugunthanvnm@ti.com>
Tested-by: Jagan Teki <jteki@openedev.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c
index e72abb9..5766c18 100644
--- a/drivers/mtd/spi/spi_flash.c
+++ b/drivers/mtd/spi/spi_flash.c
@@ -1098,7 +1098,7 @@
 	flash->sector_size = flash->erase_size;
 
 	/* Look for the fastest read cmd */
-	cmd = fls(params->e_rd_cmd & spi->op_mode_rx);
+	cmd = fls(params->e_rd_cmd & spi->mode_rx);
 	if (cmd) {
 		cmd = spi_read_cmds_array[cmd - 1];
 		flash->read_cmd = cmd;