Use pnacl-finalize for the spec tests instead of pnacl-strip.
Use pnacl-finalize for the spec tests instead of pnacl-strip.

BUG=https://code.google.com/p/nativeclient/issues/detail?id=3348

Review URL: https://codereview.chromium.org/13638024

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@11157 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client