ARM: dts: keystone: fix netcp's clocks definitions

The clocks tree for Keystone 2 NTCP devices should be
defined as following:
[refclk] - board dependent
 |- <papllclk> - PLL clock
    |- <paclk13> - fixed factor clock div=3 mul=1
       |- <clkpa> - gated clock
       |- <clkcpgmac> - gated clock
       |- <clksa> - gated clock

Hence, update Keystone 2 DT to follow HW specification.
Signed-off-by: NWingMan Kwok <w-kwok2@ti.com>
Signed-off-by: NGrygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>

arch/arm/boot/dts/k2e-clocks.dtsi

@@ -22,7 +22,7 @@ clocks {
 		#clock-cells = <0>;
 		compatible = "ti,keystone,pll-clock";
 		clocks = <&refclkpass>;
-		clock-output-names = "pa-pll-clk";
+		clock-output-names = "papllclk";
 		reg = <0x02620358 4>;
 		reg-names = "control";
 	};

arch/arm/boot/dts/k2hk-clocks.dtsi

@@ -31,7 +31,7 @@ clocks {
 		#clock-cells = <0>;
 		compatible = "ti,keystone,pll-clock";
 		clocks = <&refclkpass>;
-		clock-output-names = "pa-pll-clk";
+		clock-output-names = "papllclk";
 		reg = <0x02620358 4>;
 		reg-names = "control";
 	};

arch/arm/boot/dts/k2l-clocks.dtsi

@@ -31,7 +31,7 @@ clocks {
 		#clock-cells = <0>;
 		compatible = "ti,keystone,pll-clock";
 		clocks = <&refclksys>;
-		clock-output-names = "pa-pll-clk";
+		clock-output-names = "papllclk";
 		reg = <0x02620358 4>;
 		reg-names = "control";
 	};

arch/arm/boot/dts/keystone-clocks.dtsi

@@ -215,7 +215,7 @@ clocks {
 	clkpa: clkpa {
 		#clock-cells = <0>;
 		compatible = "ti,keystone,psc-clock";
-		clocks = <&chipclk16>;
+		clocks = <&paclk13>;
 		clock-output-names = "pa";
 		reg = <0x0235001c 0xb00>, <0x02350008 0x400>;
 		reg-names = "control", "domain";