ARM: dts: sun4i: Change framebuffer node names to avoid warnings

The simple-framebuffer nodes have a unit address, but no reg property which
generates a warning when compiling it with DTC.

Change the simple-framebuffer node names so that there is no warnings on
this anymore.
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun4i-a10.dtsi

@@ -60,7 +60,7 @@ chosen {
 		#size-cells = <1>;
 		ranges;
 
-		framebuffer@0 {
+		framebuffer-lcd0-hdmi {
 			compatible = "allwinner,simple-framebuffer",
 				     "simple-framebuffer";
 			allwinner,pipeline = "de_be0-lcd0-hdmi";
@@ -70,7 +70,7 @@ framebuffer@0 {
 			status = "disabled";
 		};
 
-		framebuffer@1 {
+		framebuffer-fe0-lcd0-hdmi {
 			compatible = "allwinner,simple-framebuffer",
 				     "simple-framebuffer";
 			allwinner,pipeline = "de_fe0-de_be0-lcd0-hdmi";
@@ -82,7 +82,7 @@ framebuffer@1 {
 			status = "disabled";
 		};
 
-		framebuffer@2 {
+		framebuffer-fe0-lcd0 {
 			compatible = "allwinner,simple-framebuffer",
 				     "simple-framebuffer";
 			allwinner,pipeline = "de_fe0-de_be0-lcd0";
@@ -93,7 +93,7 @@ framebuffer@2 {
 			status = "disabled";
 		};
 
-		framebuffer@3 {
+		framebuffer-fe0-lcd0-tve0 {
 			compatible = "allwinner,simple-framebuffer",
 				     "simple-framebuffer";
 			allwinner,pipeline = "de_fe0-de_be0-lcd0-tve0";