linux-phytec-fsl

MXSCM-225 dts: imx: fix the power gpio for usb otg2 on 6sxscm evb

The usb otg2, on the SXSCM EVB board is powered up directly by the
GEN_V5 signal from the PMIC, so there is no gpio assigned.

The wrong assignation was preventing the busfreq driver to switch
to any other frequency, since the usb otg2 looks to be always
active.

Signed-off-by: Juan Gutierrez <juan.gutierrez@nxp.com>