pseudomodem: Clearing bearers should remove them from DBus connection.

Bearers will now get properly removed from the DBus connection when the
pseudomodem is reset. Also fixed bug involving Ip4Config/Ip6Config
property of bearer.

BUG=chromium:240598
TEST=network_3GSmokeTest.pseudomodem should pass.

Change-Id: I96ae164ee01514ffe10c0db70593705314c050ac
Reviewed-on: https://gerrit.chromium.org/gerrit/51159
Commit-Queue: Arman Uguray <armansito@chromium.org>
Reviewed-by: Arman Uguray <armansito@chromium.org>
Tested-by: Arman Uguray <armansito@chromium.org>
2 files changed