mtd: rawnand: gpmi: Remove useless dependency on MTD_NAND

The MTD_NAND_GPMI_NAND entry is already defined in an 'if MTD_NAND'
block, no need to add an extra "depends on MTD_NAND".
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

drivers/mtd/nand/raw/Kconfig

@@ -340,7 +340,7 @@ config MTD_NAND_NANDSIM
 
 config MTD_NAND_GPMI_NAND
         tristate "GPMI NAND Flash Controller driver"
-        depends on MTD_NAND && MXS_DMA
+        depends on MXS_DMA
         help
 	 Enables NAND Flash support for IMX23, IMX28 or IMX6.
 	 The GPMI controller is very powerful, with the help of BCH