ARM: dts: OMAP5+: Enable all gpios in SPL

With DM enabled, gpio numbering is assigned based on the
probed order of gpios, irrespective of the gpio base. So enable
all necessary gpios in SPL.

Fixes: edf25d94d55c (“ARM: dts: OMAP5+: Enable gpio in SPL”)
Reported-by: Gou, Hongmei <h-gou@ti.com>
Tested-by: Aparna Balasubramanian <aparnab@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

arch/arm/dts/omap5-u-boot.dtsi

@@ -60,10 +60,30 @@
 	};
 };
 
+&gpio1 {
+	u-boot,dm-spl;
+};
+
 &gpio2 {
 	u-boot,dm-spl;
 };
 
+&gpio3 {
+	u-boot,dm-spl;
+};
+
+&gpio4 {
+	u-boot,dm-spl;
+};
+
+&gpio5 {
+	u-boot,dm-spl;
+};
+
+&gpio6 {
+	u-boot,dm-spl;
+};
+
 &gpio7 {
 	u-boot,dm-spl;
 };