MCF8315A: Not connected pins 22-25

Currently we are changing the BLDC driver from MCF8316A to MCF8315A. We have modified one board with MCF8315A and it works.

According the datasheet pins 22-25 "No connection. Leave these pins floating". Is there any risk if we connect it to GND?

(In our new design we leave these pins floating)

Best Regards,
Wiebren