CHERRY-PICK: libpayload: usb: fix compilation error in debug fuction

Since CL:170664, all SC_SPEED_XXX renamed to SC_SPEED1_XXX.
There is one missing in xhci_dump_slotctx() function which makes
compilation error.

BUG=none
TEST=enable USB_DEBUG and XHCI_DUMPS macros in xhci_private.h;
then emerge-auron libpayload

Original-Change-Id: Id056b4684831a5717e87969e95ab17f11db29696
Reviewed-on: https://chromium-review.googlesource.com/261414
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Commit-Queue: Harry Pan <harry.pan@intel.com>
Tested-by: Harry Pan <harry.pan@intel.com>
(cherry picked from commit 3ca0174e93ad131309ad07187c95c1e84c7d4fc5)

Change-Id: I4e8f0b67e33b0cbcb31a4a199eab563bd2aee965
Reviewed-on: https://chromium-review.googlesource.com/261804
Tested-by: Harry Pan <harry.pan@intel.com>
Reviewed-by: Bernie Thompson <bhthompson@chromium.org>
Commit-Queue: Harry Pan <harry.pan@intel.com>
1 file changed