Without this, a bunch of cts tests fail. For example:
android.media.cts.AdaptivePlaybackTest#testMpeg4_adaptiveDrc
fails with the log message:
E/media.codec( 8194): libminijail: blocked syscall: getdents64
and
android.security.cts.StagefrightTest#testStagefright_bug_25765591
fails because of a blocked call to nanosleep.
Change-Id: Iba99163c86e2941a8e821136188ddb3cf4d34a5c