Ilya Zhuravlev 7d932b88f8 flash_stm32: don't unlock flash if already unlocked
On stm32f4 after reboot from DFU it was observed that the flash is
already unlocked. In that case, attempting to unlock it again causes a
data abort.
2021-08-01 16:25:27 -04:00
..
2019-08-30 15:01:52 -07:00
2021-07-17 23:46:10 -04:00
2019-08-30 15:01:52 -07:00