Update submodule ecl to latest Thu Oct 18 12:37:31 UTC 2018

    - ecl in PX4/Firmware (bd71d1cd9e1e1d29f89351c43f879e6c49b727bc): https://github.com/PX4/ecl/commit/f240eaa5b089c50b957a3ab61aeb722ea57dccd9
    - ecl current upstream: https://github.com/PX4/ecl/commit/10a0fef7b7db749f5baf3384e9c900d3aa0e8140
    - Changes: https://github.com/PX4/ecl/compare/f240eaa5b089c50b957a3ab61aeb722ea57dccd9...10a0fef7b7db749f5baf3384e9c900d3aa0e8140

    10a0fef 2018-10-18 jie.zhang - EKF/control: remove unnecessary yaw_align update
8bbaf89 2018-10-17 Daniel Agar - EKF add new simple setIMUData() interface (#512)
e6cd6ef 2018-09-03 Paul Riseborough - EKF: Fix bug preventing  use of flow sensors without gyros
2c3a064 2018-09-18 Daniel Agar - README.md update Jenkins build status icon and url

ecl @ 10a0fef7

-Subproject commit f240eaa5b089c50b957a3ab61aeb722ea57dccd9
+Subproject commit 10a0fef7b7db749f5baf3384e9c900d3aa0e8140