Change the overflow fix NONBE_FIX_2493_EXTRACT_L_acelp_core_dec_fx for...
Change the overflow fix NONBE_FIX_2493_EXTRACT_L_acelp_core_dec_fx for NONBE_FIX_2493_EXTRACT_L_acelp_core_dec_fx_SAT, using saturation and correct scale of bwe_exc buffer in cae of NONBE_FIX_2493_EXTRACT_L_acelp_core_dec_fx.