usb: chipidea: host: add portpower override
usb: chipidea: host: add portpower override

This patch adds an external portpower override callback, only single
port regulator control is supported now.

Signed-off-by: Michael Grzeschik <56a917ffddddef251f53499c2bdc20635fcae7f7@pengutronix.de>
Signed-off-by: Peter Chen <c01a8c815a4ad165fff2d1c0d35ddf5b16bd3d7b@freescale.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs