Create channel if channel is not available

Bug: 36530928

Test: follow steps to repro in http://b/36530928#comment2
      and make sure no crash is seen when importing from SIM or Vcard.
      Also hard code to stop listening for ACTION_BOOT_COMPLETED and
      make sure channel is created before setting channel;

Change-Id: Ib061e299082670c24a0e248da5a61285cd944ea6