PPC64: Define the optional ctz Turbo Fan operator.

PPC64: Define the optional ctz Turbo Fan operator.

Like its 32-bit counterpart, this is not implemented on PPC.

R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, dstence@us.ibm.com
BUG=

Committed: https://crrev.com/432d1a6f6ac3c2741d004faefd9eed23385d91a5
Cr-Commit-Position: refs/heads/master@{#31925}

[MTBrandyberry, 2015-11-10 19:21:03]

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

[commit-bot: I haz the power, 2015-11-10 19:21:06]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1438583002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1438583002/1

[michael_dawson, 2015-11-10 19:41:01]

On 2015/11/10 19:21:06, commit-bot: I haz the power wrote:
> Dry run: CQ is trying da patch. Follow status at
>  https://chromium-cq-status.appspot.com/patch-status/1438583002/1
> View timeline at
>  https://chromium-cq-status.appspot.com/patch-timeline/1438583002/1

lgtm

[commit-bot: I haz the power, 2015-11-10 19:50:02]

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

[commit-bot: I haz the power, 2015-11-10 19:50:04]

Dry run: This issue passed the CQ dry run.

[MTBrandyberry, 2015-11-10 19:53:01]

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

[commit-bot: I haz the power, 2015-11-10 19:53:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1438583002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1438583002/1

[commit-bot: I haz the power, 2015-11-10 19:54:34]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-10 19:55:03]

Patchset 1 (id:??) landed as
https://crrev.com/432d1a6f6ac3c2741d004faefd9eed23385d91a5
Cr-Commit-Position: refs/heads/master@{#31925}