board: ti: j721s2: MAINTAINERS: Update the MAINTAINERS File.

Update the MAINTAINERS file and propose a new MAINTAINER for j721s2 due
to the previous MAINTAINER not being associated with TI.

Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
1 file changed