[android_webview] Add instrumented_libraries to known_issues.

The instrumented_libraries library is not needed for the
android_webview build and should not be included in it because
of license incompatibility.

BUG=None
TEST=None
R=torne@chromium.org

Review URL: https://codereview.chromium.org/61313003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@234536 0039d316-1c4b-4281-b951-d872f2087c98

android_webview/tools/known_issues.py

@@ -41,6 +41,7 @@ KNOWN_INCOMPATIBLE = {
         'third_party/apple_sample_code',
         'third_party/bsdiff',
         'third_party/bspatch',
+        'third_party/instrumented_libraries',
         'third_party/liblouis',
         'third_party/readability',
         'third_party/speech-dispatcher',