board-8930: Add HSUSB PHY Init Sequence

HSUSB PHY init sequence is required to configure different
parameters of PHY with optimum values. With this configuration,
HSUSB Device Eye Diagram compliance test is passing and seen
issue of enumerating in FSUSB mode on multiple POPI test is also
fixed.

CRs-Fixed: 366092
Change-Id: Icc6fff4c877e300e72467240de548f2084a7daa3
Signed-off-by: Mayank Rana <mrana@codeaurora.org>