FuguAudio: reverse policy change

Put back a multi-channel flag to fix audio on Fugu.
This reverses part of a CL to fix timestamps.

Bug: 21930805
Change-Id: I9341002c342d9ac916da5bcd100738817fa88f00
Signed-off-by: Phil Burk <philburk@google.com>
diff --git a/audio_policy.conf b/audio_policy.conf
index 8cf93a0..4e337fe 100644
--- a/audio_policy.conf
+++ b/audio_policy.conf
@@ -34,6 +34,7 @@
         channel_masks dynamic
         formats dynamic
         devices AUDIO_DEVICE_OUT_AUX_DIGITAL
+        flags AUDIO_OUTPUT_FLAG_DIRECT
       }
     }
     inputs {