Merge changes Idc72ee81,Ibe2519ff,I2982b9f4,Icb2a8c32 into msm-3.0

* changes:
  USB: android: Add OTG descriptor to configuration
  USB: OTG: msm: Add support for SRP and HNP
  USB: EHCI: use otg_start_hnp() to intiate HNP in ehci-hub.c
  USB: gadget: Add OTG support for ci13xxx_udc