Add manual connect notification

Add a notification to notify user to use satellite.

Fix: 350397109
Test: manual produce and cancel the notification
Test: basic voice call + data browsing
Test: unit test
Flag: com.android.internal.telephony.flags.carrier_roaming_nb_iot_ntn

Change-Id: I6ff3eed48e207a8110a65a31f12f600803570ad6