Added new compiler option '-h', which allows converting universal charstrings to charstrings (bug 564585)

Signed-off-by: Botond Baranyi <botond.baranyi@ericsson.com>
Change-Id: Ib73c458ba631710cabc1ef1e9b64928e0f79db31
Signed-off-by: Botond Baranyi <botond.baranyi@ericsson.com>