Create the notification before registering the callback and add a null check logic.

Bug: 378519836
Test: SatelliteControllerTest
Manual system test with Samsung device
Flag: EXEMPT bugfix

Change-Id: I46a7faac17c0c6c82b9ae9dabbbd41ad1da6d47b
Signed-off-by: Duke Lee <deukmo.lee@samsung.corp-partner.google.com>
1 file changed