Describe the bug:
On the m5stick s3 the brightness resets to 100% after rebooting.

Steps To Reproduce:
Change the brightness to anything lower than 100% and reboot.
- Device used:
M5stick s3

Expected behavior:
the brightness applies the saved setting after a reboot.

Actual behavior:
the brightness sets to 100% after a reboot.

Additional context / logs:
latest release bruce 1.14 for m5stick s3