enable system_ext in bramble/redfin

Bug: 134359158
Fixes: 146534947
Test: m
Change-Id: I3edaaa8577451a3e5b352f589e2f5db4b3e55209
Merged-In: I3edaaa8577451a3e5b352f589e2f5db4b3e55209
(cherry picked from commit d60864728393ccd79519925f8837c6ae1a73d68c)
1 file changed