Merge branch 'hq_core_enc_fdcng_enc_fxd' into 'main'
FdCngEncodeMDCTStereoSID subfunctions, hq_core_enc function and sub-functions converted to fxd See merge request !610
FdCngEncodeMDCTStereoSID subfunctions, hq_core_enc function and sub-functions converted to fxd See merge request !610