Enable CFI for additional media components.

Enables CFI for the following components (when built with the global
ENABLE_CFI flag set):
   - media/libstagefright/
   - media/libstagefright/colorconversion/
   - media/libstagefright/filters/
   - media/libstagefright/id3/
   - media/libstagefright/matroska/
   - media/libstagefright/mpeg2ts/
   - media/libstagefright/timedtext/
   - media/libstagefright/webm/

Bug: 30227045
Test: m -j40 and device builds and boots
Test: CFI is not enabled unless built with ENABLE_CFI=true
Test: CFI enabled build passes the media CTS tests.

Change-Id: I294b55ab34f94cca4eb9a2eef9c5c7f050d22b75