FIX COMPILATION WARNING

FIX COMPILATION WARNING

BZ: 15901

blackbay_pr2.c:170: warning: function declaration isn't a prototype
blackbay_pr2.c:96: warning: 'audience_free_resources' defined but not used

Change-Id: Ie9363e06fa9a9e166d481344bb0fadf33b147943
Signed-off-by: Fei Yang <fei.yang@intel.com>
Reviewed-on: http://android.intel.com:8080/33260
Tested-by: Ng, Cheon-woei <cheon-woei.ng@intel.com>
Reviewed-by: Ng, Cheon-woei <cheon-woei.ng@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>