android: Add SONAME to libgstreamer_android.so for compatibility with Android >= 6.0
android: Add SONAME to libgstreamer_android.so for compatibility with Android >= 6.0

Due to the latest changes in Android 6.0 runtime (http://developer.android.com/intl/ko/about/versions/marshmallow/android-6.0-changes.html#behavior-runtime)
Each module should explicitly define it's SONAME. since the building scripts for building android_gstreamer.so doesn't define soname the library is built without one.
This will cause a failure in loading any library that uses libgstreamer_android.so.

https://bugzilla.gnome.org/show_bug.cgi?id=757732

flexVDI/cerbero,fluendo/cerbero,shoreflyer/cerbero,multipath-rtp/cerbero,atsushieno/cerbero,nirbheek/cerbero,OptoFidelity/cerbero,centricular/cerbero,centricular/cerbero,nirbheek/cerbero,multipath-rtp/cerbero,atsushieno/cerbero,atsushieno/cerbero,OptoFidelity/cerbero,centricular/cerbero,EricssonResearch/cerbero,fluendo/cerbero,multipath-rtp/cerbero,justinjoy/cerbero,shoreflyer/cerbero,EricssonResearch/cerbero,GStreamer/cerbero,fluendo/cerbero,shoreflyer/cerbero,flexVDI/cerbero,fluendo/cerbero,EricssonResearch/cerbero,atsushieno/cerbero,GStreamer/cerbero,flexVDI/cerbero,centricular/cerbero,fluendo/cerbero,justinjoy/cerbero,justinjoy/cerbero,multipath-rtp/cerbero,OptoFidelity/cerbero,nirbheek/cerbero,GStreamer/cerbero,shoreflyer/cerbero,centricular/cerbero,shoreflyer/cerbero,flexVDI/cerbero,multipath-rtp/cerbero,EricssonResearch/cerbero,justinjoy/cerbero,flexVDI/cerbero,atsushieno/cerbero,EricssonResearch/cerbero,GStreamer/cerbero,OptoFidelity/cerbero,nirbheek/cerbero,GStreamer/cerbero