usb: xhci-msm-hsic: Reset transfer ring upon bus suspend

HW TR dequeue pointer gets stuck to a No-Op TRB while aborting
ongoing transfer during function suspend. This is triggering
frequent ring expansion and eventually system goes out of
dma memory pool. Workaround this issue by resetting HW TR dequeue
pointer to the trb of first segment of the transfer ring. Also,
reset SW enqueue and dequeue pointers to the same trb.

CRs-Fixed: 582401
Change-Id: Ib739ce66efa11035db9a4e65c313308693b09159
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>