Fix memory leak issues.

Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Li Elvin <elvin.li@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13288 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Universal/Console/GraphicsConsoleDxe/GraphicsConsole.c

@@ -758,6 +758,7 @@ CheckModeSupported (
           //
           // If video device has been set to this mode, we do not need to SetMode again
           //
+          FreePool (Info);
           break;
         } else {
           Status = GraphicsOutput->SetMode (GraphicsOutput, ModeNumber);