USB: ehci-msm-hsic: Allow enabling only RESET SOF workaround

HSIC PHY has hardware issues related to a race condition between
a SOF packet and RESET, SUSPEND or RESUME events.

There is already a platform_data or DT parameter:
'phy_sof_workaround' which enables all these SOF related workarounds.
But, some hardwares have only RESET SOF issues present. For these
add pdata and DT parameter to enable only RESET SOF workaround.

Change-Id: I87d0626fd6da19e9e77b62833627caba97106086
CRs-fixed: 548153
Signed-off-by: Amit Blay <ablay@codeaurora.org>