dcn_bw_max
unsigned int dcn_bw_max(const unsigned int arg1, const unsigned int arg2);
vdd_level = dcn_bw_max(vdd_level, vdd_level_temp);
vdd_level = dcn_bw_max(vdd_level, vdd_level_temp);
vdd_level = dcn_bw_max(vdd_level, vdd_level_temp);
vdd_level = dcn_bw_max(vdd_level, vdd_level_temp);