Add basic support for the J722S EVM with UART console and
MMC SD as rootfs.

Schematics are available at:
	https://www.ti.com/lit/zip/sprr495Co-developed-by: Jayesh Choudhary <j-choudhary@ti.com>
Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
Signed-off-by: Vaishnav Achath <vaishnav.a@ti.com>
Reviewed-by: Manorit Chawdhry <m-chawdhry@ti.com>
Link: https://lore.kernel.org/r/20240206100608.127702-4-vaishnav.a@ti.comSigned-off-by: Vignesh Raghavendra <vigneshr@ti.com>