wwan: Fix signal strength display when extended signal retrieval is disabled
MMModemSignal interface is used to retrieve extended signal information that requires periodic polling. Therefore, it needs to be manually enabled in order to use. There if a fallback to use mm_modem_get_signal_quality when MMModemSignal interface is unavailable, but it didn't check whether it's actually enabled, leaving the UI with empty label.
wip/sadiq/wwan-panel in 2 minutes and 36 seconds (queued for 7 seconds)7 jobs for