arm64: dts: ti: k3-j784s4-mcu-wakeup: Add FSS OSPI0 and FSS OSPI1

TI K3 J784S4 has the Cadence OSPI controllers OSPI0 and OSPI1 on FSS
bus for interfacing with OSPI flashes. Add the nodes to allow using
SPI flashes.

Signed-off-by: Apurva Nandan <a-nandan@ti.com>
Link: https://lore.kernel.org/r/20230504080305.38986-2-a-nandan@ti.com


Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>