ARM HW bots: looks for FEATURE_VERSION in the right place

ARM HW bots: looks for FEATURE_VERSION in the right place

The ARM HW bots weren't running SIMD tests because they weren't looking for
the FEATURE_VERSION file at the right place: they were looking in pnacl_newlib
instead of pnacl_translator, and the former doesn't exist on ARM hardware.

So, fall back to pnacl_translator/FEATURE_VERSION if pnacl_newlib doesn't
exist.

R=jvoung@chromium.org, jfb@chromium.org
BUG=nativeclient:2205
Committed: https://src.chromium.org/viewvc/native_client?view=rev&revision=13376

[Derek Schuff, 2014-06-18 18:37:52]

Cloning the CL from https://codereview.chromium.org/331933002/

[jvoung (off chromium), 2014-06-18 18:54:15]

lgtm

https://codereview.chromium.org/341973003/diff/1/site_scons/site_tools/naclsd...
File site_scons/site_tools/naclsdk.py (right):

https://codereview.chromium.org/341973003/diff/1/site_scons/site_tools/naclsd...
site_scons/site_tools/naclsdk.py:681: if not os.path.exists(version_file):
Leave a comment about why you check the fallback? (Technically, pnacl_translator
is only used to translate when the flag use_sandboxed_translator=1 -- but this
doesn't check that Scons Bit)

[Derek Schuff, 2014-06-18 22:16:20]

Committed patchset #2 manually as r13376 (presubmit successful).