Release v2.2.0

Lino Sanfilippo (6):
      piControl: Add tracing for sniffpins
      piControl: fix device address handling in upload_firmware()
      piControl: compact: get rid of useless hrtimer_sleeper struct
      piControl: compact: reimplement sleep of cycle timer
      piControl: compact: use threshold for missed cycles warning
      piControl: compact: create sysfs entry for lost cycles statistics

Markus Kaupert (2):
      Generic PiBridge Device: Add FW type id
      RevPi Generic PiBridge: Add new base device

Nicolai Buchwitz (1):
      Use correct offset for gpiochip0 on flat

Thomas Böhler (1):
      Release v2.2.0