Mark ecx register as clobbered (solaris/intel)

This is a followup of :
commit e748b096
Author: Kristian Rietveld <kris@lanedo.com>
Date:   Sat Oct 15 01:15:21 2011 +0200

    Mark ecx register as clobbered

    The inline assembly code executes a function call and functions are
    free to use eax, ecx and edx without preservation. We must thus mark
    ecx as a clobber register.

Change-Id: I4e9ed38189b23c2bb6d4fbdedc34c318026acfe7

bridges/source/cpp_uno/gcc3_solaris_intel/uno2cpp.cxx

@@ -97,7 +97,7 @@ static void callVirtualMethod(
         :
         : "m"(nStackLongs), "m"(pStackLongs), "m"(pAdjustedThisPtr),
           "m"(nVtableIndex), "m"(eax), "m"(edx), "m"(stackptr)
-        : "eax", "edx" );
+        : "eax", "ecx", "edx" );
     switch( eReturnType )
     {
         case typelib_TypeClass_HYPER: