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

Commit 8899c60d (Reset transfer ring upon bus suspend) resets
transfer ring only upon bus suspend. There is a possibility of
HW Deq pointer getting stuck if bus suspend is aborted and one
or more interfaces finish suspend. Hence reset transfer ring per
endpoint upon interface suspend.

CRs-Fixed: 613028
Change-Id: I459e97e8ff242eaef36e799874bcdb114fb8cc9a
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>