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: 556954
Change-Id: I36d3a738953b13b7d54fff3275395c03ab00a61c
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>