ARM: dts: Add support for GPMC for dm814x and dra62x

Add support for GPMC for dm814x and dra62x
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/dm814x.dtsi

@@ -548,6 +548,18 @@ phy_sel: cpsw-phy-sel@48140650 {
 				reg-names = "gmii-sel";
 			};
 		};
+
+		gpmc: gpmc@50000000 {
+			compatible = "ti,am3352-gpmc";
+			ti,hwmods = "gpmc";
+			ti,no-idle-on-init;
+			reg = <0x50000000 0x2000>;
+			interrupts = <100>;
+			gpmc,num-cs = <7>;
+			gpmc,num-waitpins = <2>;
+			#address-cells = <2>;
+			#size-cells = <1>;
+		};
 	};
 };