Enable --targets=x86,x86_64,arm (not just ARM) when building toolchain.
Enable --targets=x86,x86_64,arm (not just ARM) when building toolchain.

Review URL: http://codereview.chromium.org/748001

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@1665 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

nacl-webkit/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client