BaseTools: Update UPT tool to support multiple workspaces

Update UPT to refer MultipleWorkspace class to convert
the file path from WORKSPACE and PACKAGES_PATH.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hesheng Chen <hesheng.chen@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18580 6f19259b-4bc3-4df7-8a09-765794883524

BaseTools/Source/Python/UPT/UPT.py

@@ -39,6 +39,7 @@ from Logger.ToolError import FILE_TYPE_MISMATCH
 from Logger.ToolError import OPTION_CONFLICT
 from Logger.ToolError import FatalError
 from Logger.ToolError import UPT_ALREADY_INSTALLED_ERROR
+from Common.MultipleWorkspace import MultipleWorkspace as mws
 
 import MkPkg
 import InstallPkg
@@ -164,7 +165,7 @@ def Main():
         setattr(Opt, Var[0], Var[1])
 
     try:
-        GlobalData.gWORKSPACE = GetWorkspace()
+        GlobalData.gWORKSPACE, GlobalData.gPACKAGE_PATH = GetWorkspace()
     except FatalError, XExcept:
         if Logger.GetLevel() <= Logger.DEBUG_9:
             Logger.Quiet(ST.MSG_PYTHON_ON % (python_version(), platform) + format_exc())