msm8994: Add support for QUSB2PHY for dragonboard

In dragonboard, Port 1 will be used for fastboot use cases and
Port 1 uses QUSB2 PHY. We need to configure the PHY for
successful USB enumeration on Port 1.

CRs-Fixed: 665264
Change-Id: Ie2dc5470dd27436b1a9293635b8d0def8f0bb94a
2 files changed