ARM: dts: am437x: align gpio hog names with dt-schema

The GPIO Hog dt-schema node naming convention expect GPIO hogs node names
to end with a 'hog' suffix.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am437x-gp-evm.dts

@@ -786,7 +786,7 @@ &gpio0 {
 	pinctrl-0 = <&gpio0_pins>;
 	status = "okay";
 
-	p23 {
+	sel-emmc-nand-hog {
 		gpio-hog;
 		gpios = <23 GPIO_ACTIVE_HIGH>;
 		/* SelEMMCorNAND selects between eMMC and NAND:
@@ -819,7 +819,7 @@ &gpio5 {
 	status = "okay";
 	ti,no-reset-on-init;
 
-	p8 {
+	sel-lcd-hdmi-hog {
 		/*
 		 * SelLCDorHDMI selects between display and audio paths:
 		 * Low: HDMI display with audio via HDMI

arch/arm/boot/dts/am43x-epos-evm.dts

@@ -725,7 +725,7 @@ &gpio2 {
 	pinctrl-0 = <&display_mux_pins>;
 	status = "okay";
 
-	p1 {
+	sel-lcd-hdmi-hog {
 		/*
 		 * SelLCDorHDMI selects between display and audio paths:
 		 * Low: HDMI display with audio via HDMI