PX4/NuttX branch test: px4_firmware_nuttx-8.2

NuttX:
 - https://github.com/PX4-NuttX/nuttx/tree/px4_firmware_nuttx-8.2
 - PX4/NuttX@fdf1837

Changes from PX4/NuttX (PX4/NuttX@7b36108) in current PX4/master (ca0b570)
PX4/NuttX@7b36108...fdf1837

fdf1837077 (HEAD, origin/px4_firmware_nuttx-8.2, origin/HEAD, px4_firmware_nuttx-8.2) [BACKPORT] S32K add support for Nxp drone boards (#224)
f479b26c98 [BACKPORT] imxrt added missing i2c prescale mask
26dd187034 [BACKPORT] Kinetis renamed TJA1100 to TJA110X registers

Apps:
 - https://github.com/PX4/NuttX-apps/tree/px4_firmware_nuttx-8.2
 - PX4/NuttX-apps@91b6ad6

Changes from PX4/NuttX-apps (PX4/NuttX-apps@91b6ad6) in current PX4/master (ca0b570)
PX4/NuttX-apps@91b6ad6...91b6ad6