linux-phytec-ti

ARM: dts: keystone-k2g: add QSPI DT entry

66AK2G02 SoC has a Cadence QSPI controller to interact with spi-nor
flash devices, add DT entry for Cadence QSPI controller.
Also, add new compatible "ti,k2g-qspi" for K2G QSPI along
with "cdns,qspi-nor". This will enable handling of TI specific quirks
in the driver.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>