Move modem_set_carrier to crosh from crosh-workarounds

BUG=chromium-os:13312
TEST=installed, and ran modem_set_carrier from crosh. Verified help output looks right.

Review URL: http://codereview.chromium.org/6708067

Change-Id: I5077b658c72eea30afa9c7c2ef3aca3f09679280
1 file changed
tree: 922b37d33196e9b97cca02270efca5da1db58015
  1. crosh-workarounds
  2. generate_logs
  3. inherit-review-settings-ok
  4. LICENSE