arm64: dts: ti: k3-j721e-mcu-wakeup: Add HyperBus node

J721E has a Flash SubSystem that has one OSPI and one HyperBus with
muxed datapath and another independent OSPI. Add DT nodes for HyperBus
controller and keep it disabled and model the data path selection mux as a
reg-mux.

Signed-off-by: Vaishnav Achath <vaishnav.a@ti.com>
Link: https://lore.kernel.org/r/20230513123313.11462-2-vaishnav.a@ti.com


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