ARM: dts: imx6q: prtwd2: Correct iomux configuration for ENET MDIO and MDC

This commit addresses a misconfiguration in the prtwd2 device tree
source. Specifically, the ENET MDIO and MDC pins were mistakenly
assigned to the Ethernet block, while they are actually used by the I2C4
interface.
Signed-off-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6q-prtwd2.dts

@@ -156,9 +156,6 @@ MX6QDL_PAD_GPIO_16__ENET_REF_CLK	0x1b0b0
 			MX6QDL_PAD_CSI0_DAT4__GPIO5_IO22	0x1b0b0
 			/* nINTRP */
 			MX6QDL_PAD_CSI0_DAT5__GPIO5_IO23	0x1b0b0
-
-			MX6QDL_PAD_ENET_MDIO__ENET_MDIO		0x10030
-			MX6QDL_PAD_ENET_MDC__ENET_MDC		0x10030
 		>;
 	};