Merge changes Ie69b7aeb,I7b80a00a,Ia7e1be18,I54c9fa02,I2303f623 into msm-3.0

* changes:
  usb: msm_otg: vote and unvote for CXO_CLK instead of D0
  wcnss: Enable CXO for PMU accesses
  msm: pil-riva: Enable CXO clock to access PMU
  msm: pil-q6v4: Proxy vote for L23
  msm: pil-riva: Proxy vote for L23