arm64: dts: ti: k3-j721e-common-proc-board: Add j721e-evm compatible

Add j721e-evm compatible to the board to allow the board to distinguish
itself from other platforms that are pending to be added.
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20210925201430.11678-4-nm@ti.com

arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts

@@ -12,6 +12,9 @@
 #include <dt-bindings/phy/phy-cadence.h>
 
 / {
+	compatible = "ti,j721e-evm", "ti,j721e";
+	model = "Texas Instruments J721e EVM";
+
 	chosen {
 		stdout-path = "serial2:115200n8";
 		bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000";