Rollback #7967, ChibiOS thread safety#8173

Merged

tzarc merged 1 commit intoqmk:masterfrom tzarc:i2c_locks_mk2

Feb 23, 2020

+12-51

Commits on Feb 22, 2020

Rollback PR qmk#7967 in preference of fixing I2C start/stop properly, in a followup PR.
tzarc
committed