arm: dts: k3-j721e-r5*: Introduce k3-j721e-r5.dtsi

Introduce k3-j721e-r5.dtsi to be used by board R5 DTS files. This
helps sync SoC changes across boards.

Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Manorit Chawdhry <m-chawdhry@ti.com>
4 files changed