usb: dwc3: trace: print enqueue/dequeue pointers too

By printing enqueue/dequeue pointers, we can make sure that our TRB
handling is correct. We've had a recent situation where we were not
always dequeueing all TRBs in an SG list and this helped figure out
what the problem was.

Change-Id: Ied1c5d57b4f324c40dd219153b49a1e244b6773c
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Git-commit: 30ad6273adad76017ddad737d45f8931cac554ad
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: Mayank Rana <mrana@codeaurora.org>