platform: msm: Set USB speed to SUPER before calling notifier

Currently we set the USB speed to SUPER after calling vbus/id
notifier callback. As a part of cable connect, is USB speed
is set to SUPER after connect resume_work is called, then we
do not initialise the SSPHY. So clocks are OFF.
But as part of cable disconnect, if USB speed is set to SUPER
before disconnect resume_work is called, then we try to
suspend SSPHY resulting in unclocked access.

Fix this by mandatorily setting USB speed to SUPER before
queuing VBUS/ID notifier.

Change-Id: Iac4411ddafd87909b1b26c9b5a8eb354a073d268
Signed-off-by: Ajay Agarwal <ajaya@codeaurora.org>