usb: phy: Update BIAS_CTRL2 register based on REFGEN status

This change adds support to read REFGEN status and override BIAS_CTRL2
register for better USB compliance result.

Change-Id: Id8f27b086870046203afea899e95b5e5f0106029
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
2 files changed