* Reverse the linked list of data_validator_group and maintain a first node
for search from index 0
Fixes issue PX4/Firmware#8644
* fix code style
* validator: fix shadowing of 'sibling' argument
* Revert "EKF: Release flow speed limit with altitude gained"
This reverts commit e70206f74bc4f77a0e000da3c923f4459006d2b1.
* Revert "fix code style"
This reverts commit 76bf70121c37e2c1ec74982eb8c26e0510b2c84a.
* Revert "Reverse the linked list of data_validator_group and maintain a first node"
This reverts commit 32482e7644d14d7e4d0e25183b0dc9b0f27bf9c1.