Drillbit: Clarify use of device_data pointer to store capabilities/protocol version temporarily
Drillbit: Add upper and lower bounds to "Eight boards have a multiple of 8 ASICs" check
Drillbit: Reintroduce voltage enums removed in b1dd9fed, fix bug introduced in same commit (750/850mV settings swapped)
Revert needless commit 270c1d01f, thanks @luke-jr