ARM: dts: dra76-evm: Fix rproc reserved-memory labels and node names

The commit 1cc71af030c6 ("ARM: dts: dra76-evm: Add CMA pools and enable
IPU & DSP rprocs") erroneously used the old CMA terminology in the DSP
and IPU rproc reserved memory node names and labels. Fix these and align
with the node names and labels used in all the other TI DRA7xx/AM57xx
board dts files.

Fixes: 1cc71af030c6 ("ARM: dts: dra76-evm: Add CMA pools and enable IPU & DSP rprocs")
Signed-off-by: Suman Anna <s-anna@ti.com>

arch/arm/boot/dts/dra76-evm.dts

@@ -26,28 +26,28 @@
 		#size-cells = <2>;
 		ranges;
 
-		ipu2_cma_pool: ipu2_cma@95800000 {
+		ipu2_memory_region: ipu2-memory@95800000 {
 			compatible = "shared-dma-pool";
 			reg = <0x0 0x95800000 0x0 0x3800000>;
 			reusable;
 			status = "okay";
 		};
 
-		dsp1_cma_pool: dsp1_cma@99000000 {
+		dsp1_memory_region: dsp1-memory@99000000 {
 			compatible = "shared-dma-pool";
 			reg = <0x0 0x99000000 0x0 0x4000000>;
 			reusable;
 			status = "okay";
 		};
 
-		ipu1_cma_pool: ipu1_cma@9d000000 {
+		ipu1_memory_region: ipu1-memory@9d000000 {
 			compatible = "shared-dma-pool";
 			reg = <0x0 0x9d000000 0x0 0x2000000>;
 			reusable;
 			status = "okay";
 		};
 
-		dsp2_cma_pool: dsp2_cma@9f000000 {
+		dsp2_memory_region: dsp2-memory@9f000000 {
 			compatible = "shared-dma-pool";
 			reg = <0x0 0x9f000000 0x0 0x800000>;
 			reusable;
@@ -487,20 +487,20 @@
 
 &ipu2 {
 	status = "okay";
-	memory-region = <&ipu2_cma_pool>;
+	memory-region = <&ipu2_memory_region>;
 };
 
 &ipu1 {
 	status = "okay";
-	memory-region = <&ipu1_cma_pool>;
+	memory-region = <&ipu1_memory_region>;
 };
 
 &dsp1 {
 	status = "okay";
-	memory-region = <&dsp1_cma_pool>;
+	memory-region = <&dsp1_memory_region>;
 };
 
 &dsp2 {
 	status = "okay";
-	memory-region = <&dsp2_cma_pool>;
+	memory-region = <&dsp2_memory_region>;
 };