EVS: bug in calling Quant_BWE_LSF_fx()

This is a follow up of !2851 (comment 111237).

There seems to be a bug in calling function Quant_BWE_LSF_fx() in the SWB TBE decoder at https://forge.3gpp.org/rep/sa4/audio/ivas-basop/-/blob/main/lib_enc/swb_tbe_enc_fx.c#L2639. The last parameter should be likely st_fx->extl_brate instead of st_fx->extl:

        /* LSF quantization (21 bits) */
        IF( st_fx->element_mode == EVS_MONO )
        {
            Quant_BWE_LSF_fx( hBstr, hBWE_TD, st_fx->codec_mode, lsf_shb_fx, lsf_shb_fx, st_fx->extl ); // this is likely a bug in EVS
        }
        ELSE
        {
            Quant_BWE_LSF_fx( hBstr, hBWE_TD, st_fx->codec_mode, lsf_shb_fx, lsf_shb_fx, st_fx->extl_brate );
        }