Enable building for ARM with nacl-clang

Enable building for ARM with nacl-clang

This was previously disabled because the SDK libraries
were missing.

BUG=454962
TEST=trybots
R=gdeepti@chromium.org

Committed: https://chromium.googlesource.com/external/naclports/+/0854b884b7467bc3b034806e44f027614265303d

[Sam Clegg, 2015-02-20 21:28:38]

sbc@chromium.org changed reviewers:
+ gdeepti@chromium.org

[Sam Clegg, 2015-02-23 21:05:06]

ptal

[gdeepti, 2015-02-23 21:35:14]

On 2015/02/23 21:05:06, Sam Clegg wrote:
> ptal

Failure on the glibc devenv port?

[Sam Clegg, 2015-02-23 22:23:34]

On 2015/02/23 21:35:14, gdeepti wrote:
> On 2015/02/23 21:05:06, Sam Clegg wrote:
> > ptal
> 
> Failure on the glibc devenv port?

Looks like a flake since its timing out.   Also, this change should not effect
any glibc builds.  Running again just in case.

[gdeepti, 2015-02-23 22:26:37]

On 2015/02/23 22:23:34, Sam Clegg wrote:
> On 2015/02/23 21:35:14, gdeepti wrote:
> > On 2015/02/23 21:05:06, Sam Clegg wrote:
> > > ptal
> > 
> > Failure on the glibc devenv port?
> 
> Looks like a flake since its timing out.   Also, this change should not effect
> any glibc builds.  Running again just in case.

lgtm

[Sam Clegg, 2015-02-24 01:38:54]

Committed patchset #3 (id:40001) manually as
0854b884b7467bc3b034806e44f027614265303d (tree was closed).