arch: mach-k3: Introduce basic files to support J722S SoC family

Introduce the basic functions and definitions needed to properly
initialize TI J722S family of SoCs.

Co-developed-by: Vaishnav Achath <vaishnav.a@ti.com>
Signed-off-by: Vaishnav Achath <vaishnav.a@ti.com>
Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
10 files changed