Fix multiparty bit value when doing a conference call
Fix multiparty bit value when doing a conference call

There's no signal from CSD to indicate that the multiparty call status has
changed. The only way to figure out the multiparty status of a call is by
parsing the reply to the GetCallInfoAll method. So, every time a call goes
active or to hold and there is more than one call ongoing use
GetCallInfoAll to update the multiparty bit (and other properties that
come with this method call).

silent-snowman/bluez,silent-snowman/bluez,ComputeCycles/bluez,mapfau/bluez,ComputeCycles/bluez,pkarasev3/bluez,mapfau/bluez,mapfau/bluez,pstglia/external-bluetooth-bluez,pkarasev3/bluez,ComputeCycles/bluez,pstglia/external-bluetooth-bluez,mapfau/bluez,silent-snowman/bluez,ComputeCycles/bluez,pstglia/external-bluetooth-bluez,pkarasev3/bluez,pkarasev3/bluez,pstglia/external-bluetooth-bluez,silent-snowman/bluez