cellular: Setup modem in test environment
Enable modem and wait for it to register with the network when
initializing the test environment. Also fix invalid service state
message to be more user friendly.
BUG=chromium:403160
TEST=network_3GSmokeTest with LTE, GSM, CDMA and pseudo modems
Change-Id: Ia05a9d04ab57aae945343dce0b2757ad2b221394
Reviewed-on: https://chromium-review.googlesource.com/217141
Reviewed-by: Ben Chan <benchan@chromium.org>
Commit-Queue: Thieu Le <thieule@chromium.org>
Tested-by: Thieu Le <thieule@chromium.org>
4 files changed