ARM: dts: sun8i: V3/V3s/S3/S3L: add pinctrl for 8-bit parallel CSI

The CSI1 controller of V3/V3s/S3/S3L SoCs is used for parallel CSI.

As we're going to add support for Pine64 SCC board, which uses 8-bit
parallel CSI (and the MCLK output), add the pinctrl node of 8-bit
CSI and MCLK to the DTSI file.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20200923010122.148661-1-icenowy@aosc.io

arch/arm/boot/dts/sun8i-v3s.dtsi

@@ -312,6 +312,20 @@
 			interrupt-controller;
 			#interrupt-cells = <3>;
 
+			/omit-if-no-ref/
+			csi1_8bit_pins: csi1-8bit-pins {
+				pins = "PE0", "PE2", "PE3", "PE8", "PE9",
+				       "PE10", "PE11", "PE12", "PE13", "PE14",
+				       "PE15";
+				function = "csi";
+			};
+
+			/omit-if-no-ref/
+			csi1_mclk_pin: csi1-mclk-pin {
+				pins = "PE1";
+				function = "csi";
+			};
+
 			i2c0_pins: i2c0-pins {
 				pins = "PB6", "PB7";
 				function = "i2c0";