chmod the analyzer scripts.

I've updated the build script to do this, but this "backports" that
for the NDK. https://android-review.googlesource.com/#/c/281065/

Test: ndk/run_tests.py --filter NDK_ANALYZE
Bug: None
Change-Id: I024b654f93281674c2b07e50ef11611b4200d8c4
60 files changed