Update submodule nuttx to latest Wed Mar 11 12:38:18 UTC 2020

- nuttx in PX4/Firmware (ac11b36e74e27ef7054d6386f0fce62108b5f614): bf646dcf46
    - nuttx current upstream: db7fb6b6c0
    - Changes: bf646dcf46...db7fb6b6c0

    db7fb6b6c0 2020-03-05 Jari van Ewijk - [BACKPORT] S32K1xx boards - Remove unused files (should have been renamed)
This commit is contained in:
PX4 BuildBot 2020-03-11 12:38:18 +00:00 committed by Daniel Agar
parent 707c840fd9
commit 249ad0ced1

@ -1 +1 @@
Subproject commit bf646dcf46ac4a18c29b1cab4aa5e7a54280782e
Subproject commit db7fb6b6c07120fe97c5c7c1b2fdb46f32b190bc