Release v2.3.0

Lino Sanfilippo (5):
      piControl: add support for RevPi Connect 5
      piControl: Init PiBridge ethernet mode GPIOs on connect 5
      piControl: add support for gigabit ethernet switch on PiBridge
      piControl: remove unnecessary substates from state machine
      Release 2.3.0

Nicolai Buchwitz (2):
      piControl: Fix input length for Connect 5
      piControl: Fix gigabit detection on PiBridge

Nicolau Buchwitz (1):
      piControl: Remove obsolete gateways

Thomas Böhler (4):
      build: Move Makefile from src/ to root
      build: adhere to Kbuild doc for external module
      build: remove spurious whitespace in Makefile
      build: use ccflags-y instead of EXTRA_CFLAGS