ipq806x: Update HSIO recommended usb phy settings

ipq806x: Update HSIO recommended usb phy settings

Picking commit from QSDK
https://source.codeaurora.org/quic/qsdk/oss/kernel/linux-msm/commit/drivers/phy/phy-qcom-dwc3.c?h=eggplant&id=cf82fdf4bdd081cd81bb081f7815b915bc8bb851

The comit adjusts USB dwc3 phy default values as per QSDK recomendation and allows to set it through DT.

Commit message:
"SoC version based values will be recovered from the device node.
If device node does not have such values, defaults are applied.

Change-Id: Ia77b5b7fe95ce1a433885df1761091bced98d989
Signed-off-by: Gokul Sriram Palanisamy <gpalan@codeaurora.org>"
Signed-off-by: Pavel Kubelun <be.dissent@gmail.com>