Update submodule ecl to latest Tue May 18 00:50:43 UTC 2021

- ecl in PX4/Firmware (4668ea5c32075aca28fd813881a349f765ad8d2a): 29243ac5cb
    - ecl current upstream: 85f5a935fe
    - Changes: 29243ac5cb...85f5a935fe

    85f5a93 2021-05-11 bresch - [AUTO COMMIT] update change indication
f7c687e 2021-05-11 bresch - GNSS yaw unit test: test fallback to non yaw aiding mode
a4fe2b1 2021-05-11 bresch - yaw_align: let the mag control logic do the alignement and resets
2cc0230 2021-05-11 bresch - mag control: select mag mode before doing the reset
fe943cf 2021-05-11 bresch - mag reset: force align in MC custom mode (aka. indoor mode)
cadcc58 2021-05-11 bresch - mag reset: do not stop the fusion from inside the reset function
6248646 2021-05-11 bresch - EV yaw: move EV yaw reset out of resetMagHeading function
48722a2 2021-05-07 bresch - control: inhibit EV yaw from restarting when GPS aid wants to start
a685987 2021-05-07 bresch - GNSS yaw: unset yaw_align if fusion stops before takeoff
7ee6970 2021-05-04 bresch - GNSS yaw: add test case when measurement jumps
7a11871 2021-05-04 bresch - GNSS yaw tests: adjust timing
51197a5 2021-05-03 bresch - GNSS yaw selection logic refactor

src/lib/ecl

@@ -1 +1 @@
-Subproject commit 29243ac5cbb5d27ac71744e88afcd786df6f748d
+Subproject commit 85f5a935fe6095f585bfb12b584e0813126cbc2a