Version 5.0.71.21: Merge arm64 CacheLineSizes revert

Version 5.0.71.21: Merge arm64 CacheLineSizes revert

This reverts:
d627337e9 - 5.0.71.16 / Fix i/d cache line size confusion typo
c3ff68b6b - Detect cache line size on Linux for PPC hosts.
Which is the branch's equivalent of backmerging:
5d62db743 - Revert "Detect cache line size on Linux for PPC hosts."

And cherry-picks:
042f09a95 - Reland PPC portion of "Detect cache line size on Linux for PPC hosts."

BUG=chromium:594646, chromium:593867
LOG=n
R=cbruni@chromium.org

Committed: https://chromium.googlesource.com/v8/v8/+/f396d7d65fc540daedef7d08632c0c3d7629eab2

[Camillo Bruni, 2016-03-21 16:03:54]

lgtm

[Jakob Kummerow, 2016-03-21 16:06:22]

Description was changed from

==========
Version 5.0.71.20: Merge arm64 CacheLineSizes revert

This reverts:
d627337e9 - 5.0.71.16 / Fix i/d cache line size confusion typo
c3ff68b6b - Detect cache line size on Linux for PPC hosts.
Which is the branch's equivalent of backmerging:
5d62db743 - Revert "Detect cache line size on Linux for PPC hosts."

And cherry-picks:
042f09a95 - Reland PPC portion of "Detect cache line size on Linux for PPC
hosts."

BUG=chromium:594646,chromium:593867
LOG=n
R=cbruni@chromium.org
==========

to

==========
Version 5.0.71.21: Merge arm64 CacheLineSizes revert

This reverts:
d627337e9 - 5.0.71.16 / Fix i/d cache line size confusion typo
c3ff68b6b - Detect cache line size on Linux for PPC hosts.
Which is the branch's equivalent of backmerging:
5d62db743 - Revert "Detect cache line size on Linux for PPC hosts."

And cherry-picks:
042f09a95 - Reland PPC portion of "Detect cache line size on Linux for PPC
hosts."

BUG=chromium:594646,chromium:593867
LOG=n
R=cbruni@chromium.org
==========

[Jakob Kummerow, 2016-03-21 16:09:50]

Description was changed from

==========
Version 5.0.71.21: Merge arm64 CacheLineSizes revert

This reverts:
d627337e9 - 5.0.71.16 / Fix i/d cache line size confusion typo
c3ff68b6b - Detect cache line size on Linux for PPC hosts.
Which is the branch's equivalent of backmerging:
5d62db743 - Revert "Detect cache line size on Linux for PPC hosts."

And cherry-picks:
042f09a95 - Reland PPC portion of "Detect cache line size on Linux for PPC
hosts."

BUG=chromium:594646,chromium:593867
LOG=n
R=cbruni@chromium.org
==========

to

==========
Version 5.0.71.21: Merge arm64 CacheLineSizes revert

This reverts:
d627337e9 - 5.0.71.16 / Fix i/d cache line size confusion typo
c3ff68b6b - Detect cache line size on Linux for PPC hosts.
Which is the branch's equivalent of backmerging:
5d62db743 - Revert "Detect cache line size on Linux for PPC hosts."

And cherry-picks:
042f09a95 - Reland PPC portion of "Detect cache line size on Linux for PPC
hosts."

BUG=chromium:594646,chromium:593867
LOG=n
R=cbruni@chromium.org

Committed:
https://chromium.googlesource.com/v8/v8/+/f396d7d65fc540daedef7d08632c0c3d762...
==========

[Jakob Kummerow, 2016-03-21 16:09:52]

Committed patchset #2 (id:20001) manually as
f396d7d65fc540daedef7d08632c0c3d7629eab2 (presubmit successful).