The $GNGGA traces provide "combined" values when multiple satellite
constellations are used (e.g. GPS+GLONASS). Prefer these values over
the GPS-only $GPGGA traces if both are received.
==8663== 1 bytes in 1 blocks are definitely lost in loss record 5 of 4,864
==8663== at 0x4C2CEDF: malloc (vg_replace_malloc.c:299)
==8663== by 0x669FAC9: g_malloc (in /usr/lib/libglib-2.0.so.0.5600.1)
==8663== by 0x66B9AEA: g_strndup (in /usr/lib/libglib-2.0.so.0.5600.1)
==8663== by 0x66ACE52: g_match_info_fetch (in /usr/lib/libglib-2.0.so.0.5600.1)
==8663== by 0x4E96DD2: mm_location_gps_raw_add_trace (mm-location-gps-raw.c:208)
==8663== by 0x18721E: mm_iface_modem_location_gps_update (mm-iface-modem-location.c:264)
==8663== by 0x1B9C7F: loc_location_nmea_indication_cb (mm-shared-qmi.c:712)
==8663== by 0x640C9E7: g_cclosure_marshal_VOID__BOXEDv (in /usr/lib/libgobject-2.0.so.0.5600.1)
==8663== by 0x6409C95: ??? (in /usr/lib/libgobject-2.0.so.0.5600.1)
==8663== by 0x64259E8: g_signal_emit_valist (in /usr/lib/libgobject-2.0.so.0.5600.1)
==8663== by 0x642612F: g_signal_emit (in /usr/lib/libgobject-2.0.so.0.5600.1)
==8663== by 0x54AAB2D: process_indication (qmi-loc.c:7454)
Reported by: Thomas Weißschuh <thomas@weissschuh.net>
It's pointless to have libmm-common around, just merge it into libmm-glib and
make ModemManager depend on libmm-glib directly. At the end, the non-common
stuff in libmm-glib is really minimal.