Release v2.6.1

Nicolai Buchwitz (12):
      piControl: remove dead debug infrastructure
      piIOComm: remove dead DEBUG_GPIO debug blocks
      RevPiDevice: remove redundant DEBUG_DEVICE ifdef guards
      RevPiDevice: remove unused RevPiDevice_stopDataexchange()
      piControlMain: fix memory leaks of connl and cl on reset and removal
      piControlMain: add NULL check after kmalloc in piControlReset()
      piConfig: add NULL checks after allocation and use kzalloc
      piConfig: fix wrong index in type 4 (Config) offset correction
      revpi_gate: use GFP_KERNEL instead of GFP_ATOMIC for allocations
      piControlMain: fix copy_to_user destination in send_config()
      piControlMain: use bit numbers for flag definitions
      piControl: replace KUNBUS types with standard kernel types

Ramiro Gsponer (1):
      Release v2.6.1