ARM: dts: am335x-phycore-som: Enable gpmc node in dts files

As nand flash is not always the primary storage device any more
disable it in the phycore-som include file. Enable it the device tree
files where it is populated.
Signed-off-by: NTeresa Remmet <t.remmet@phytec.de>
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am335x-phycore-rdk.dts

@@ -13,6 +13,10 @@
 #include "am335x-pcm-953.dtsi"
 
 /* SoM */
+&gpmc {
+	status = "okay";
+};
+
 &i2c_eeprom {
 	status = "okay";
 };

arch/arm/boot/dts/am335x-phycore-som.dtsi

@@ -190,7 +190,7 @@
 };
 
 &gpmc {
-	status = "okay";
+	status = "disabled";
 	pinctrl-names = "default";
 	pinctrl-0 = <&nandflash_pins>;
 	ranges = <0 0 0x08000000 0x1000000>;   /* CS0: NAND */

arch/arm/boot/dts/am335x-wega-rdk.dts

@@ -13,6 +13,10 @@
 #include "am335x-wega.dtsi"
 
 /* SoM */
+&gpmc {
+	status = "okay";
+};
+
 &i2c_eeprom {
 	status = "okay";
 };