ARM: dts: imx7-colibri: use NAND_CE1 as GPIO

All Colibri iMX7 SKUs use either single-die NAND or eMMC, hence
NAND_CE1 is not used on the module and can be used as a GPIO by
carrier boards.
Signed-off-by: NStefan Agner <stefan@agner.ch>
Reviewed-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx7-colibri.dtsi

@@ -329,6 +329,7 @@
 			MX7D_PAD_EPDC_SDCE2__GPIO2_IO22		0x14 /* SODIMM 127 */
 			MX7D_PAD_UART3_RTS_B__GPIO4_IO6		0x14 /* SODIMM 131 */
 			MX7D_PAD_EPDC_GDRL__GPIO2_IO26		0x14 /* SODIMM 133 */
+			MX7D_PAD_SAI1_RX_DATA__GPIO6_IO12	0x14 /* SODIMM 169 */
 			MX7D_PAD_SAI1_RX_BCLK__GPIO6_IO17	0x14 /* SODIMM 24 */
 			MX7D_PAD_SD2_DATA2__GPIO5_IO16		0x14 /* SODIMM 100 */
 			MX7D_PAD_SD2_DATA3__GPIO5_IO17		0x14 /* SODIMM 102 */
@@ -439,7 +440,6 @@
 			MX7D_PAD_SD3_CLK__NAND_CLE		0x71
 			MX7D_PAD_SD3_CMD__NAND_ALE		0x71
 			MX7D_PAD_SAI1_TX_BCLK__NAND_CE0_B	0x71
-			MX7D_PAD_SAI1_RX_DATA__NAND_CE1_B	0x71
 			MX7D_PAD_SAI1_TX_DATA__NAND_READY_B	0x74
 			MX7D_PAD_SD3_STROBE__NAND_RE_B		0x71
 			MX7D_PAD_SD3_RESET_B__NAND_WE_B		0x71