Resolved trace level issue for AVDTP

Root Cause: Trace messages are getting logged

When setting TRC_AVDT=5 the trace level doesn't take effect. Due to
multiple initialization points the bt_stack.conf value was overwritten

Bug: 19417758
1 file changed
tree: e13478e67e9ecd7d32db4d7bed71989a58e7c92b
  1. gki/
  2. system/
  3. Android.mk
  4. CleanSpec.mk