bitfury: Require explicit -S bitfury:auto to probe GPIO-based SPI
Bugfix: configure: Enable bitfury by default properly
Enable littlefury detection
littlefury: Log devproto of incomplete reads
Bugfix: littlefury: Keep reading until error, EOF, or buffer filled
littlefury: Safeguard on job switching
bitfury: Eliminate non-const global variables
littlefury: Log read return value when unexpected
bitfury: Abstract out payload_to_atrvec
littlefury: Need to set tv_morework
Abstract hasehs_done2 which keeps track of time deltas per thr on its own
bitfury: Loop over chips once during scanwork
bitfury: Move second_run logic back to libbitfury
bitfury: Resolve devices[chip] only once per chip
bitfury: Treat each chip as its own processor
littlefury: Use bitfury driver scanwork
Merge commit 'b2b19ff' into littlefury

Conflicts:
	driver-bitfury.c
Merge commit '828d195' into littlefury
Merge commit '00ac287' into littlefury
Merge commit 'fecfc9c' into littlefury