Allow NetworkStack to send protected broadcasts

NetworkStack is a system app and should be able to send such broadcasts.

Test: flashed, booted
Bug: b/112869080
Merged-In: I149c0a37640ea81fe5f4180e3bfc56124a2dcfa8
Change-Id: I9b020e4233dee21cdfc7f1c6341a25f1e97d3a06
1 file changed