libgsm_ms codec depends on libgsm

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@8045 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

configure

@@ -663,6 +663,8 @@ faac_encoder_deps="libfaac"
 liba52_decoder_deps="liba52"
 libgsm_decoder_deps="libgsm"
 libgsm_encoder_deps="libgsm"
+libgsm_ms_decoder_deps="libgsm"
+libgsm_ms_encoder_deps="libgsm"
 libtheora_encoder_deps="libtheora"
 mp3lame_encoder_deps="libmp3lame"
 oggvorbis_decoder_deps="libvorbis"