arm64: dts: ti: k3-am625: Add PRUSS-M node

commit 01dde87a79a9acb826d9cf43d59a0f61bc788a74 from
git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git



Add the DT node for the PRUSS-M processor subsystem that is present
on the K3 AM62x SoCs. The K3 AM62x family of SoC has one PRUSS-M
instance and it has two Programmable Real-Time Units (PRU0 and PRU1).

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Hari Nagalla <hnagalla@ti.com>
Signed-off-by: Xulin Sun <xulin.sun@windriver.com>