G.722 support

AM SDK 5.02 includes support for GStreamer and libav codecs, G.722 encode decode is included in this package. I have personally validated G.726 and here is the pipeline example for it:

gst-launch -v audiotestsrc freq=400 blocksize=4096 num-buffers=16 ! 'audio/x-raw-int,channels=1,rate=8000' ! ffenc_g726 bitrate=32000 ! ffdec_g726 ! alsasink

SDK 5.02 can be downloaded at: http://software-dl.ti.com/dsps/dsps_public_sw/am_bu/sdk/AM37xSDK/latest/index_FDS.html

Thank you.