configs: j721e_evm_a72: Add initial support

Add initial defconfig support for J721e that runs on A72.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
[trini: Add MAINTAINERS entry]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/ti/j721e/MAINTAINERS b/board/ti/j721e/MAINTAINERS
index 71543f3..d51e899 100644
--- a/board/ti/j721e/MAINTAINERS
+++ b/board/ti/j721e/MAINTAINERS
@@ -4,3 +4,4 @@
 F:	board/ti/j721e
 F:	include/configs/j721e_evm.h
 F:	configs/j721e_evm_r5_defconfig
+F:	configs/j721e_evm_a72_defconfig