Add android_ndk and catapult to .gitignore BUG=angleproject:4026 Change-Id: I58ed4dea3c962c6a7c46deb69400b984d8a2ea30 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1918569 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>