usb: dwc3: Write necessary registers for dual port enablement

In line with the sequence for primary port, update proper fields
of DWC3_GUSB2PHYCFG and DWC3_GUSB3PIPECTL registers for the
second port of the dual port controller. Update other registers
as required.
While at it, also avoid enabling SSPHY autosuspend if
dis_u3_susphy_quirk is set.

Change-Id: Ib79dba4c6d854fa2bf33a1b7cecf06f988250662
Signed-off-by: Ajay Agarwal <ajaya@codeaurora.org>
Signed-off-by: Harsh Agarwal <harshq@codeaurora.org>