GSD-2022-1004987 xhci: Fix null pointer dereference in remove if xHC has only one roothub

xhci: Fix null pointer dereference in remove if xHC has only one roothub This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.19.8 by commit...