rtpsession: Return FALSE if there is an error on rtp_set_send_codec
rtpsession: Return FALSE if there is an error on rtp_set_send_codec

shadeslayer/farstream,shadeslayer/farstream,pexip/farstream,tieto/farstream,tieto/farstream,kakaroto/farstream,tieto/farstream,pexip/farstream,shadeslayer/farstream,tieto/farstream,pexip/farstream,kakaroto/farstream,kakaroto/farstream,shadeslayer/farstream,kakaroto/farstream,tieto/farstream,pexip/farstream