video: disable auto quality by default

Many problems arise when codec quality is set to automatic
configuration. Micro-cuts can appear at a periodic interval
during a call and network burst effects on a conversation
last for a longer period than the burst itself.

As disabling automatic configuration proved to fix those
issues, it is now disabled by default.

Change-Id: Ib5098d3acc77913d605034530a44a61d3003599d
Reviewed-by: Guillaume Roguez <guillaume.roguez@savoirfairelinux.com>

src/media/media_codec.h

@@ -192,7 +192,7 @@ struct AccountVideoCodecInfo : AccountCodecInfo
     unsigned frameRate;
     unsigned profileId;
     std::string parameters;
-    bool isAutoQualityEnabled{true};
+    bool isAutoQualityEnabled{false};
 };
 bool operator== (SystemCodecInfo codec1, SystemCodecInfo codec2);