arm64: dts: ti: k3-*: Use generic pinctrl for node names

Use pinctrl@ naming for nodes following standard conventions of device
tree (section 2.2.2 Generic Names recommendation in [1]).

[1] https://github.com/devicetree-org/devicetree-specification/tree/v0.3Suggested-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20200903130015.21361-6-nm@ti.com

arch/arm64/boot/dts/ti/k3-am65-main.dtsi

@@ -134,7 +134,7 @@ rng: rng@4e10000 {
 		};
 	};
 
-	main_pmx0: pinmux@11c000 {
+	main_pmx0: pinctrl@11c000 {
 		compatible = "pinctrl-single";
 		reg = <0x0 0x11c000 0x0 0x2e4>;
 		#pinctrl-cells = <1>;
@@ -142,7 +142,7 @@ main_pmx0: pinmux@11c000 {
 		pinctrl-single,function-mask = <0xffffffff>;
 	};
 
-	main_pmx1: pinmux@11c2e8 {
+	main_pmx1: pinctrl@11c2e8 {
 		compatible = "pinctrl-single";
 		reg = <0x0 0x11c2e8 0x0 0x24>;
 		#pinctrl-cells = <1>;

arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi

@@ -39,7 +39,7 @@ chipid@43000014 {
 		reg = <0x43000014 0x4>;
 	};
 
-	wkup_pmx0: pinmux@4301c000 {
+	wkup_pmx0: pinctrl@4301c000 {
 		compatible = "pinctrl-single";
 		reg = <0x4301c000 0x118>;
 		#pinctrl-cells = <1>;

arch/arm64/boot/dts/ti/k3-j721e-main.dtsi

@@ -327,7 +327,7 @@ rng: rng@4e10000 {
 		};
 	};
 
-	main_pmx0: pinmux@11c000 {
+	main_pmx0: pinctrl@11c000 {
 		compatible = "pinctrl-single";
 		/* Proxy 0 addressing */
 		reg = <0x0 0x11c000 0x0 0x2b4>;

arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi

@@ -53,7 +53,7 @@ chipid@43000014 {
 		reg = <0x0 0x43000014 0x0 0x4>;
 	};
 
-	wkup_pmx0: pinmux@4301c000 {
+	wkup_pmx0: pinctrl@4301c000 {
 		compatible = "pinctrl-single";
 		/* Proxy 0 addressing */
 		reg = <0x00 0x4301c000 0x00 0x178>;