ARM: dts: sun4i: Provide default muxing for relevant controllers

The I2C's, MMC0 and EMAC controllers have only one muxing option in the
SoC. In such a case, we can just move the muxing into the DTSI, and remove
it from the DTS.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts

@@ -99,8 +99,6 @@
 };
 
 &i2c0 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&i2c0_pins>;
 	status = "okay";
 
 	axp209: pmic@34 {
@@ -112,15 +110,11 @@
 #include "axp209.dtsi"
 
 &i2c1 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&i2c1_pins>;
 	/* pull-ups and devices require AXP209 LDO3 */
 	status = "failed";
 };
 
 &i2c2 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&i2c2_pins>;
 	status = "okay";
 
 	ft5406ee8: touchscreen@38 {
@@ -154,8 +148,6 @@
 };
 
 &mmc0 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */