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>
diff --git a/arch/arm/mach-k3/j722s/Makefile b/arch/arm/mach-k3/j722s/Makefile
new file mode 100644
index 0000000..2b1fec1
--- /dev/null
+++ b/arch/arm/mach-k3/j722s/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2024 Texas Instruments Incorporated - https://www.ti.com/
+#	Jayesh Choudhary <j-choudhary@ti.com>
+
+obj-$(CONFIG_OF_SYSTEM_SETUP) += j722s_fdt.o
+obj-$(CONFIG_SPL_BUILD) += j722s_init.o