avq_dec.c, ivas_agc_com.c, ivas_agc_dec.c functions
[x] Functions present in avq_dec.c updated with basops/macros and one function is imported from EVS. [x] Functions present in ivas_agc_com.c and ivas_agc_dec.c are converted to fixed point
[x] Functions present in avq_dec.c updated with basops/macros and one function is imported from EVS. [x] Functions present in ivas_agc_com.c and ivas_agc_dec.c are converted to fixed point