veyron.io/veyron/veyron/profiles: Add build tag for platform_nacl.go file.

Change-Id: I0963e93f445052471868bc7dedffd51028c8556a
Explanation: Go android build uses 1.2.2 go compiler (because it requires custom patches which haven't yet been released for 1.3), which doesn't understand the _nacl extension, and fails the build.
1 file changed
tree: 120f135959e92371a5e35ac7b741adeacc4d1122
  1. lib/
  2. profiles/
  3. runtimes/
  4. security/
  5. services/
  6. tools/