tenderloin: fix up otg

This is untested and unsure if it works.  Builds and
boots with no errors.

Change-Id: Ic9565ab561d753b91e4117867c4d420de0c4ac86
OTG: usb_multi_charger_detect

Ported from JCsullins 3.0 Kernel

Change-Id: I3908fd6e4fa6c526c1c9bf9d178491d78a3c6022
msm_camio_disable: fix double-disable of CAMIO_VFE_CLK
OTG: Update regulator

Change-Id: I7a643fa65af64a2b72fcf0748a2f314e1bd13acf