Add armv8 support for 32-bit building

Add armv8 support for 32-bit building

Updated config to build 32-bit for armv8-a.

BUG=internal b/28255481

Committed: https://crrev.com/fe6d4d102f10b6b746dd35e960abd456ce14cb88
Cr-Commit-Position: refs/heads/master@{#389330}

[antz, 2016-04-22 20:33:54]

antz@google.com changed reviewers:
+ bcf@chromium.org, brettw@chromium.org, scottmg@chromium.org, slan@chromium.org

[brettw, 2016-04-22 20:42:13]

lgtm

[slan, 2016-04-22 22:05:04]

lgtm

[antz, 2016-04-22 23:13:17]

git cl upload somehow combined two of my patches, reverting to PS1 state

[bcf, 2016-04-22 23:24:54]

lgtm

[antz, 2016-04-22 23:51:56]

The CQ bit was checked by antz@google.com

[antz, 2016-04-22 23:51:57]

The patchset sent to the CQ was uploaded after l-g-t-m from slan@chromium.org,
brettw@chromium.org
Link to the patchset: https://codereview.chromium.org/1915483004/#ps40001
(title: " ")

[commit-bot: I haz the power, 2016-04-22 23:52:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1915483004/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1915483004/40001

[commit-bot: I haz the power, 2016-04-23 00:43:43]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-04-23 00:45:08]

Description was changed from

==========
Add armv8 support for 32-bit building

Updated config to build 32-bit for armv8-a.

BUG=internal b/28255481
==========

to

==========
Add armv8 support for 32-bit building

Updated config to build 32-bit for armv8-a.

BUG=internal b/28255481

Committed: https://crrev.com/fe6d4d102f10b6b746dd35e960abd456ce14cb88
Cr-Commit-Position: refs/heads/master@{#389330}
==========

[commit-bot: I haz the power, 2016-04-23 00:45:09]

Patchset 3 (id:??) landed as
https://crrev.com/fe6d4d102f10b6b746dd35e960abd456ce14cb88
Cr-Commit-Position: refs/heads/master@{#389330}