Revert of Removed tls_edit post process rules from nacl_irt

Revert of Removed tls_edit post process rules from nacl_irt (https://codereview.chromium.org/157053008/)

Reason for revert:
Google Chrome compilation breakage

http://build.chromium.org/p/chromium.chrome/builders/Google%20Chrome%20Mac/builds/16569

Original issue's description:
> Removed tls_edit post process rules from nacl_irt
> 
> Now that build_nexe.py is in charge of applying tls_edit to IRT Nexe's,
> we no longer need separate rules to apply tls_edit.
> 
> BUG= https://code.google.com/p/nativeclient/issues/detail?id=3127
> TEST= trybots
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=252237

TBR=mcgrathr@chromium.org,noelallen@chromium.org,mseaborn@chromium.org,bradnelson@google.com,bradnelson@chromium.org,noelallen@google.com,dyen@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG= https://code.google.com/p/nativeclient/issues/detail?id=3127

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=252245

[Dmitry Lomov (no reviews), 2014-02-20 15:47:49]

Created Revert of Removed tls_edit post process rules from nacl_irt

[commit-bot: I haz the power, 2014-02-20 15:49:15]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/dslomov@chromium.org/172473003/1

[commit-bot: I haz the power, 2014-02-20 15:50:44]

Change committed as 252245