[NaCl SDK Addin] Add arm support in visual studio

Also, don't pass -t to create_nmf on newer versions of the SDK.

BUG=

Review URL: https://codereview.chromium.org/11547004

git-svn-id: https://nativeclient-sdk.googlecode.com/svn/trunk/src@1473 050acbb0-2703-11df-ab0a-9f3f633ae91d
13 files changed