arm64: dts: imx8mm-venice-gw7903: add digital I/O ctl gpios

The GW7903-C revision introduced two additional GPIO's for controlling
the digital I/O direction. Add them.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mm-venice-gw7903.dts

@@ -250,7 +250,7 @@ &gpio1 {
 };
 
 &gpio2 {
-	gpio-line-names = "dig2_in", "dig2_out#", "", "", "", "", "", "",
+	gpio-line-names = "dig2_in", "dig2_out#", "dig2_ctl", "", "", "", "dig1_ctl", "",
 		"dig1_out#", "dig1_in", "", "", "", "", "", "",
 		"", "", "", "", "", "", "", "",
 		"", "", "", "", "", "", "", "";
@@ -630,6 +630,8 @@ MX8MM_IOMUXC_GPIO1_IO11_GPIO1_IO11	0x40000041 /* RS485# */
 			MX8MM_IOMUXC_GPIO1_IO12_GPIO1_IO12	0x40000041 /* RS232# */
 			MX8MM_IOMUXC_SD1_DATA7_GPIO2_IO9	0x40000041 /* DIG1_IN */
 			MX8MM_IOMUXC_SD1_DATA6_GPIO2_IO8	0x40000041 /* DIG1_OUT */
+			MX8MM_IOMUXC_SD1_DATA4_GPIO2_IO6	0x40000041 /* DIG1_CTL */
+			MX8MM_IOMUXC_SD1_DATA0_GPIO2_IO2	0x40000041 /* DIG2_CTL */
 			MX8MM_IOMUXC_SD1_CLK_GPIO2_IO0		0x40000041 /* DIG2_IN */
 			MX8MM_IOMUXC_SD1_CMD_GPIO2_IO1		0x40000041 /* DIG2_OUT */
 			MX8MM_IOMUXC_ECSPI1_MOSI_GPIO5_IO7	0x40000041 /* SIM1DET# */