ARM: dts: omap3-gta04: give spi_lcd node a label so that we can overwrite in other DTS files

[ Upstream commit fa0d7dc355c890725b6178dab0cc11b194203afa ]

needed for device variants based on GTA04 board but with
different display panel (driver).
Signed-off-by: NH. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>

arch/arm/boot/dts/omap3-gta04.dtsi

@@ -78,7 +78,7 @@
 		#sound-dai-cells = <0>;
 	};
 
-	spi_lcd {
+	spi_lcd: spi_lcd {
 		compatible = "spi-gpio";
 		#address-cells = <0x1>;
 		#size-cells = <0x0>;