5.5-rc6-bone4 release

BBDTBS: https://github.com/beagleboard/BeagleBoard-DeviceTrees/commit/7b27fa274d2143f7f9a5ea7b50b883d3a2838c1b
CAN-ISOTP: https://github.com/hartkopp/can-isotp/commit/b31bce98d65f894aad6427bcf6f3f7822e261a59
TI_AMX3_CM3: http://git.ti.com/gitweb/?p=processor-firmware/ti-amx3-cm3-pm-firmware.git;a=commit;h=6a849767df85ce9399494f53fb5c753665396653
WIREGUARD: https://git.zx2c4.com/WireGuard/commit/edad0d6e99e5133b1e8e865d727a25fff6399cb4



Signed-off-by: Robert Nelson <robertcnelson@gmail.com>