Enable CFI for static media codec libraries.

This CL enables CFI for the following components:
  - media/libstagefright/codecs/aacenc/
  - media/libstagefright/codecs/m4v_h263/dec/
  - media/libstagefright/codecs/m4v_h263/enc/
  - media/libstagefright/codecs/mp3dec/
  - media/libmediaplayerservice/nuplayer/
  - media/libstagefright/rtsp/

In most cases, these changes enable CFI for static libraries that are
included in CFI enabled components.

Bug: 30227045
Test: ENABLE_CFI=true m -j40
Test: Media CTS tests pass.
Change-Id: I976f5e5629a2c083dd24919ffe33a82967915ecd