Reduce usage of BASOP_Util_Add_Mant32Exp in MC path
Changes are under macro OPT_MCT_ENC_V1_NBE WMOPs reduction of around 136.
Tested config: Multi-Channel 7.1+4,48kbps FB
Changes are under macro OPT_MCT_ENC_V1_NBE WMOPs reduction of around 136.
Tested config: Multi-Channel 7.1+4,48kbps FB