linux-phytec-ti

arm64: dts: k3-am6: add mcu system control module node

MCU System control module support is added to the device tree to allow
drivers to access to their System control module registers.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>