ekf2: move EKF out of ecl

.github/workflows/ekf_functional_change_indicator.yml

@@ -8,13 +8,14 @@ jobs:
     container: px4io/px4-dev-base-focal:2021-05-04
     steps:
     - uses: actions/checkout@v2.3.1
+      with:
+        fetch-depth: 0
     - name: checkout newest version of branch
       run: |
         git fetch origin pull/${{github.event.pull_request.number}}/head:${{github.head_ref}}
         git checkout ${GITHUB_HEAD_REF}
     - name: main test
-      run: cd ${GITHUB_WORKSPACE}/src/lib/ecl; make test
-      working-directory: src/lib/ecl
+      run: make tests TESTFILTER=EKF
     - name: Check if there is a functional change
       run: git diff --exit-code
-      working-directory: src/lib/ecl/test/change_indication
+      working-directory: src/modules/ekf2/test/change_indication