msm: clock-krypton: Add xo and PHY clocks for USB dwc3 controller

Add device name strings in the clock lookup table for USB DWC3
controller and PHY so that the clocks can be controlled
(enable/disable/set frequency) from the device driver.

Change-Id: If3ab0ac293ea33d1362db690a6c3acd24862b18f
Signed-off-by: Maya Erez <merez@codeaurora.org>