board: ti: j721s2: Add board support for J721S2

Add board support for J721S2 SoC.

Signed-off-by: David Huang <d-huang@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
diff --git a/board/ti/j721s2/MAINTAINERS b/board/ti/j721s2/MAINTAINERS
new file mode 100644
index 0000000..323bd23
--- /dev/null
+++ b/board/ti/j721s2/MAINTAINERS
@@ -0,0 +1,16 @@
+J721S2 BOARD
+M:	Aswath Govindraju <a-govindraju@ti.com>
+S:	Maintained
+F:	board/ti/j721s2
+F:	include/configs/j721s2_evm.h
+F:	configs/j721s2_evm_r5_defconfig
+F:	configs/j721s2_evm_a72_defconfig
+F:	arch/arm/dts/k3-j721s2.dtsi
+F:	arch/arm/dts/k3-j721s2-main.dtsi
+F:	arch/arm/dts/k3-j721s2-mcu-wakeup.dtsi
+F:	arch/arm/dts/k3-j721s2-som-p0.dtsi
+F:	arch/arm/dts/k3-j721s2-common-proc-board.dts
+F:	arch/arm/dts/k3-j721s2-common-proc-board-u-boot.dtsi
+F:	arch/arm/dts//k3-j721s2-r5-common-proc-board.dts
+F:	arch/arm/dts/k3-j721s2-ddr.dtsi
+F:	arch/arm/dts/k3-j721s2-ddr-evm-lp4-4266.dtsi