Reland PPC portion of "Detect cache line size on Linux for PPC hosts."

Reland PPC portion of "Detect cache line size on Linux for PPC hosts."

This version does not modify arm64.

R=jkummerow@chromium.org, michael_dawson@ca.ibm.com
BUG=

Committed: https://crrev.com/042f09a95c63beffcadeebc955f7674cdc01c818
Cr-Commit-Position: refs/heads/master@{#34827}

[MTBrandyberry, 2016-03-16 15:16:10]

PTAL

[MTBrandyberry, 2016-03-16 15:16:16]

The CQ bit was checked by mbrandy@us.ibm.com to run a CQ dry run

[commit-bot: I haz the power, 2016-03-16 15:16:27]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1806893002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1806893002/1

[Jakob Kummerow, 2016-03-16 15:44:02]

lgtm

[commit-bot: I haz the power, 2016-03-16 15:55:45]

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

[commit-bot: I haz the power, 2016-03-16 15:55:45]

Dry run: This issue passed the CQ dry run.

[MTBrandyberry, 2016-03-16 16:25:37]

The CQ bit was checked by mbrandy@us.ibm.com

[commit-bot: I haz the power, 2016-03-16 16:25:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1806893002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1806893002/1

[commit-bot: I haz the power, 2016-03-16 16:27:45]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-16 16:29:22]

Description was changed from

==========
Reland PPC portion of "Detect cache line size on Linux for PPC hosts."

This version does not modify arm64.

R=jkummerow@chromium.org, michael_dawson@ca.ibm.com
BUG=
==========

to

==========
Reland PPC portion of "Detect cache line size on Linux for PPC hosts."

This version does not modify arm64.

R=jkummerow@chromium.org, michael_dawson@ca.ibm.com
BUG=

Committed: https://crrev.com/042f09a95c63beffcadeebc955f7674cdc01c818
Cr-Commit-Position: refs/heads/master@{#34827}
==========

[commit-bot: I haz the power, 2016-03-16 16:29:23]

Patchset 1 (id:??) landed as
https://crrev.com/042f09a95c63beffcadeebc955f7674cdc01c818
Cr-Commit-Position: refs/heads/master@{#34827}