BLUENRG-2 - Change Adversitive Interval

[rraf3]

Hi! 

I developed pcb with BLUENRG-2 IC. 

Where in BLE-Beacon example (ST BlueNRG-1_2 DK 3.1.0) I may change Adversitive Interval? 

This is need for me, because my application need more free CPU time. 

Thank you!