Use LOG_F interface for unsupported functions.
Use LOG_F interface for unsupported functions.

This will provide the function name in the log.

BUG=b/8115521
TESTED=enabled ANDROID_NOT_SUPPORTED on Linux and observed log lines as expected

Review URL: https://webrtc-codereview.appspot.com/1096005

git-svn-id: 917f5d3ca488f358c4d40eaec14422cf392ccec9@3474 4adac7df-926f-26a2-2b94-8c16560cd09d

TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,mwgoldsmith/libilbc,mwgoldsmith/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,mwgoldsmith/ilbc,ShiftMediaProject/libilbc,mwgoldsmith/libilbc,mwgoldsmith/libilbc,ShiftMediaProject/libilbc,mwgoldsmith/ilbc,mwgoldsmith/ilbc,mwgoldsmith/ilbc