Correct the dependency's path for fontconfig

Signed-off-by: Vassilis Laganakos <vassilis@einval.com>
Fix the gsm dependency name for libsndfile

Signed-off-by: Vassilis Laganakos <vassilis@einval.com>
Complete the dependencies list for pulseaudio-libs

Signed-off-by: Vassilis Laganakos <vassilis@einval.com>