Arthur: Add PUSH_COVERITY

To mbed-tls-nightly-tests and mbedtls-release-ci-testing

Signed-off-by: Arthur She <arthur.she@linaro.org>
Change-Id: Iae29baf2fe3667f710bf019e67e816cbbf22b87b
diff --git a/arthur-mbed-tls-nightly-tests.yaml b/arthur-mbed-tls-nightly-tests.yaml
index bf93c9a..7283da9 100644
--- a/arthur-mbed-tls-nightly-tests.yaml
+++ b/arthur-mbed-tls-nightly-tests.yaml
@@ -99,6 +99,10 @@
         description: ''
         name: TEST_FAIL_EMAIL_ADDRESS
         trim: 'false'
+    - bool:
+        default: true
+        description: Push head to coverity branch, triggering a scan (development only)
+        name: PUSH_COVERITY
 
     pipeline-scm:
       lightweight-checkout: true
diff --git a/arthur-mbedtls-release-ci-testing.yaml b/arthur-mbedtls-release-ci-testing.yaml
index a83ad6a..4a7826a 100644
--- a/arthur-mbedtls-release-ci-testing.yaml
+++ b/arthur-mbedtls-release-ci-testing.yaml
@@ -106,6 +106,10 @@
 
           For the list of Mbed OS Gold and Silver boards, see <a href="https://confluence.arm.com/display/IoTBU/ISG+Device+SW+SUT+list">here</a>
         name: PLATFORMS_TO_TEST
+    - bool:
+        default: false
+        description: Push head to coverity branch, triggering a scan (development only)
+        name: PUSH_COVERITY
     - git-parameter:
         name: TEST_BRANCH
         description: Branch or tag in https://github.com/arthur-she/mbedtls-test (forks are not supported)