Fix: USB Power management: USB driver to implement power saving at boot up

At boot up, if usb cable is not attached, OPP constraints can be
released on the APE domain with respect to USB client. This is done
because if usb is not used, APE can run at a low power OPP.

ST-Ericsson ID: ER262472

Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/1710
Tested-by: Sidhartha KALRA <sidhartha.kalra@stericsson.com>
Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Change-Id: Ia8ac5e69dd23431bab0b47a56239afd29388cf1a
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/2637
1 file changed