Add ONC property for EAP-GTC authentication

Add ONC property for EAP-GTC authentication

BUG=486738
R=stevenjb@chromium.org, pneubeck@chromium.org

Committed: https://crrev.com/eba91db036f740777ff8503cc2cc2597e8525353
Cr-Commit-Position: refs/heads/master@{#329291}

[pneubeck (no reviews), 2015-05-11 17:11:38]

you need to add the value also to the validator:

https://code.google.com/p/chromium/codesearch#chromium/src/chromeos/network/o...

after that lgtm

[Paul Stewart, 2015-05-11 17:22:34]

I'll set a commit flag after I roll forward service_constants in a separate CL
(constants need to land in the ChromeOS tree first)

[Paul Stewart, 2015-05-11 22:43:51]

The CQ bit was checked by pstew@chromium.org

[Paul Stewart, 2015-05-11 22:43:51]

The patchset sent to the CQ was uploaded after l-g-t-m from
pneubeck@chromium.org
Link to the patchset: https://codereview.chromium.org/1137633003/#ps20001
(title: "Added ONC validator")

[commit-bot: I haz the power, 2015-05-11 22:46:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1137633003/20001

[commit-bot: I haz the power, 2015-05-11 23:03:42]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-05-11 23:03:43]

Try jobs failed on following builders:
  linux_chromium_gn_chromeos_rel on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  linux_chromium_gn_dbg on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  linux_chromium_gn_rel on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[Paul Stewart, 2015-05-11 23:18:26]

The CQ bit was checked by pstew@chromium.org

[Paul Stewart, 2015-05-11 23:18:26]

The patchset sent to the CQ was uploaded after l-g-t-m from
pneubeck@chromium.org
Link to the patchset: https://codereview.chromium.org/1137633003/#ps40001
(title: "Add to onc_constants.h")

[commit-bot: I haz the power, 2015-05-11 23:22:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1137633003/40001

[commit-bot: I haz the power, 2015-05-12 00:18:21]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-05-12 00:19:19]

Patchset 3 (id:??) landed as
https://crrev.com/eba91db036f740777ff8503cc2cc2597e8525353
Cr-Commit-Position: refs/heads/master@{#329291}