MdeMdeModulePkg/Usb: Fixed two usb issues

1.Fix the bug in interface parser logic for usb camera device. Reserve device address if the device doesn’t get disconnected.
2.Some usb 1.1 devices require the context evaluation immediately with actual max packet size after detecting the device max packet size.

Signed-off-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Elvin Li <elvin.li@intel.com>


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14226 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Bus/Usb/UsbBusDxe/UsbEnumer.c

@@ -2,7 +2,7 @@
 
     Usb bus enumeration support.
 
-Copyright (c) 2007 - 2012, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2007 - 2013, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD License
 which accompanies this distribution.  The full text of the license may be found at
@@ -814,9 +814,6 @@ UsbEnumerateNewDev (
   return EFI_SUCCESS;
 
 ON_ERROR:
-  if (Address != Bus->MaxDevices) {
-    Bus->Devices[Address] = NULL;
-  }
 
   if (Child != NULL) {
     UsbFreeDevice (Child);