Refine the fix for the bug that cause assert when do the reconnect in the callback function.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>


git-svn-id: svn://svn.code.sf.net/p/edk2/code/trunk/edk2/MdeModulePkg@15914 6f19259b-4bc3-4df7-8a09-765794883524
MdeModulePkg/UsbBusDxe: Fix a bug about the alternate setting number which should be up to 256.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Elvin Li <elvin.li@intel.com>

git-svn-id: svn://svn.code.sf.net/p/edk2/code/trunk/edk2/MdeModulePkg@15915 6f19259b-4bc3-4df7-8a09-765794883524