The 4th USB controller instance present only on the DRA74x family of
devices so move it there.
Signed-off-by: NRoger Quadros <rogerq@ti.com>
Acked-by: NNishanth Menon <nm@ti.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>