Add tools to generated Android.mk

Include the skia tools (bench, gm, tests) in the generated Android
make file for the framework. They are commented out, so that a tester
can include them if desired.

BUG=skia:1975
R=halcanary@google.com, djsollen@google.com

Author: scroggo@google.com

Review URL: https://codereview.chromium.org/210173002

git-svn-id: http://skia.googlecode.com/svn/trunk@13915 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed