1. Add EFI_COMPONENT_NAME2_PROTOCOL.GetControllerName() support.

2. Fix the driver binding Stop() hang issue in the network stack.
3. Add Ip4 raw data support.
4. Add iSCSI Dhcp option 60 support.

Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Ouyang Qian <qian.ouyang@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13995 6f19259b-4bc3-4df7-8a09-765794883524

NetworkPkg/UefiPxeBcDxe/PxeBcDriver.c

@@ -1398,7 +1398,7 @@ PxeBcDriverBindingStop (
     if (NicHandle == NULL) {
       NicHandle = PxeBcGetNicByIp6Children (ControllerHandle);
       if (NicHandle == NULL) {
-        return EFI_DEVICE_ERROR;
+        return EFI_SUCCESS;
       } else {
         IsIpv6 = TRUE;
       }