ARM: dts: sunxi: Remove the CMA node label

There's no phandle pointing to the CMA pool, so it's label is unnecessary.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>

arch/arm/boot/dts/sun5i.dtsi

@@ -114,7 +114,7 @@ reserved-memory {
 		ranges;
 
 		/* Address must be kept in the lower 256 MiBs of DRAM for VE. */
-		cma_pool: default-pool {
+		default-pool {
 			compatible = "shared-dma-pool";
 			size = <0x6000000>;
 			alloc-ranges = <0x4a000000 0x6000000>;

arch/arm/boot/dts/sun7i-a20.dtsi

@@ -181,7 +181,7 @@ reserved-memory {
 		ranges;
 
 		/* Address must be kept in the lower 256 MiBs of DRAM for VE. */
-		cma_pool: default-pool {
+		default-pool {
 			compatible = "shared-dma-pool";
 			size = <0x6000000>;
 			alloc-ranges = <0x4a000000 0x6000000>;

arch/arm/boot/dts/sun8i-a33.dtsi

@@ -196,7 +196,7 @@ reserved-memory {
 		ranges;
 
 		/* Address must be kept in the lower 256 MiBs of DRAM for VE. */
-		cma_pool: default-pool {
+		default-pool {
 			compatible = "shared-dma-pool";
 			size = <0x6000000>;
 			alloc-ranges = <0x4a000000 0x6000000>;

arch/arm/boot/dts/sun8i-h3.dtsi

@@ -124,7 +124,7 @@ reserved-memory {
 		#size-cells = <1>;
 		ranges;
 
-		cma_pool: default-pool {
+		default-pool {
 			compatible = "shared-dma-pool";
 			size = <0x6000000>;
 			alloc-ranges = <0x4a000000 0x6000000>;