C3: clear nmmeta files on boot (#22149)
C3: clear nmmeta files on boot (#22149)

* C3: clear nmmeta files on boot

* Update launch_chffrplus.sh

Co-authored-by: Willem Melching <eda97de175ec12fa0fa744bd0ab7ea3b9c2c5275@gmail.com>

Co-authored-by: Willem Melching <eda97de175ec12fa0fa744bd0ab7ea3b9c2c5275@gmail.com>
commaai/openpilot,commaai/openpilot,commaai/openpilot,commaai/openpilot,commaai/openpilot,commaai/openpilot