- disable scanning on start
- disable scanning on start

this prevents hci_le_set_scan_parameters failing is an existing scan
has be started, so adapter state won’t be unsupported (#176)

sandeepmistry/noble,jacobrosenthal/noble,yangchengwork/noble,justmoon/noble,franciscodelicado/noble,SimplyComplexCo/noble,sunnya97/noble,noahchense/noble,Loghorn/noble,noahchense/noble,DomiR/noble,monteslu/noble,loffelmacher/noble,gbrault/noble,robotastic/noble,mcanthony/noble,noahchense/noble,mattgol/noble,gbrault/noble