ARM: dts: sun6i: Remove underscores from nodes names

Some GPIO pinctrl nodes cannot be easily removed, because they would also
change the pin configuration, for example to add a pull resistor or change
the current delivered by the pin.

Those nodes still have underscores and unit-addresses in their node names
in our DTs, so adjust their name to remove the warnings. Use that occasion
to also fix some poorly chosen node-names.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>

arch/arm/boot/dts/sun6i-a31-colombus.dts

@@ -122,7 +122,7 @@ &mmc0 {
 };
 
 &pio {
-	i2c_lcd_pins: i2c_lcd_pin@0 {
+	i2c_lcd_pins: i2c-lcd-pins {
 		pins = "PA23", "PA24";
 		function = "gpio_out";
 		bias-pull-up;

arch/arm/boot/dts/sun6i-a31s-primo81.dts

@@ -154,7 +154,7 @@ &mmc0 {
 };
 
 &pio {
-	mma8452_int_primo81: mma8452_int_pin@0 {
+	mma8452_int_primo81: mma8452-int-pin {
 		pins = "PA9";
 		function = "gpio_in";
 		bias-pull-up;

arch/arm/boot/dts/sun6i-reference-design-tablet.dtsi

@@ -74,7 +74,7 @@ &mmc0 {
 };
 
 &pio {
-	usb0_id_detect_pin: usb0_id_detect_pin@0 {
+	usb0_id_detect_pin: usb0-id-detect-pin {
 		pins = "PA15";
 		function = "gpio_in";
 		bias-pull-up;