arm64: dts: ti: k3-j721e: Add aliases for C66x rproc nodes

Add aliases for all the C66x remoteproc processor cores present
within the MAIN domain and common to all the K3 J721E boards.
The aliases uses the stem "rproc".

The aliases can be overridden, if needed, in the respective
derivative board dts files.

Signed-off-by: Suman Anna <s-anna@ti.com>

arch/arm64/boot/dts/ti/k3-j721e.dtsi

@@ -39,6 +39,8 @@
 		rproc3 = &main_r5fss0_core1;
 		rproc4 = &main_r5fss1_core0;
 		rproc5 = &main_r5fss1_core1;
+		rproc6 = &c66_0;
+		rproc7 = &c66_1;
 	};
 
 	chosen { };