usb: phy: qmp: Add support for new PHY revision on sdxhedgehog

QMP PHY revision ID has changed on sdxhedgehog. Add support to read
and validate the revision ID for QMP PHY.

CRs-Fixed: 1001463
Change-Id: I677d5d0c9a02ea5c4db2277da7c201f9c96afbcb
Signed-off-by: Devdutt Patnaik <dpatnaik@codeaurora.org>