UPSTREAM: broadband-modem-mbim: Detect change in carrier lock state

Detection of carrier lock change is required to notify upper layers when
the modem gets locked to specific network or unlocked. Previous
implementation was removed because it caused modem reprobe every time
the SIM card was unlocked (19fd9c634b8f2876694d18a77a3b686a0c08bf34).

(cherry-picked from commit 6359cc93fe84fbb6084285498b007fe2e652e9e1)

BUG=b:315288053
TEST=Check if UI gets updated after modem is locked or unlocked

Change-Id: I999ab9c163290c301f547f00c5223e76f863c5be
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/modemmanager-next/+/5116683
Reviewed-by: Aleksander Morgado <aleksandermj@google.com>
Commit-Queue: Michał Mazur <michamazur@google.com>
Tested-by: Michał Mazur <michamazur@google.com>
1 file changed