Send response for update provision satellite token immediately.

Send iccId to modem and repond back immeditely to the app.
Do not wait for updateSatelliteSubscription result to send response.

Bug: 369414441
Test: atest SatelliteControllerTest,
      Manually tested SMS/MMS/CALL/DATA
FLAG: EXEMPT bugfix
Change-Id: Ide55c5b6729f17c22feaa34ee9e478e101d31bb8