Prints the C representation of this AF.

def print(self):
        """Prints the C representation of this AF."""
        cond_var = None
        if self.supported:
            cond_var = conditional_var('{}{}'.format(self.func, self.fn_num))
            print_conditional_if(cond_var)
            print('  AF',  end='')
        else:
            print('  //', end='')
        fn_num = self.fn_num
        if fn_num is None:
            fn_num = 0
        print('({:2d}, {:8s}, {:2d}, {:10s}, {:8s}), // {:s}'.format(self.idx,
              self.func, fn_num, self.pin_type, self.ptr(), self.af_str))
        print_conditional_endif(cond_var)