xhci: move xhci_td_cleanup so it can be called by more functions

[ Upstream commit 69eaf9e7

 ]

No funtional changes

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20210129130044.206855-17-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: a1575120

 ("xhci: Prevent infinite loop in transaction errors recovery for streams")
Signed-off-by: Sasha Levin <sashal@kernel.org>