tf-a-lts2.10-main: TF_M_TESTS_GERRIT_REFSPEC, TF_M_EXTRAS_GERRIT_REFSPEC params

These must be explicit at the top level job, so that defaults embedded in
clone.sh weren't used.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: Ie32675d86d9bd208a350bb8cd22831d4e8b3d594
diff --git a/tf-a-lts2.10-main.yaml b/tf-a-lts2.10-main.yaml
index 276a7f1..0d7d659 100644
--- a/tf-a-lts2.10-main.yaml
+++ b/tf-a-lts2.10-main.yaml
@@ -35,6 +35,16 @@
             name: TFTF_GERRIT_REFSPEC
             default: '+refs/heads/lts-v2.10:refs/remotes/origin/lts-v2.10'
         - string:
+            name: TF_M_TESTS_GERRIT_REFSPEC
+            default: '95d3407a65e26fb3a4319ab38c257e50c9ee804f'
+            description: |
+              tf-m-tests refspec to use. The master branch is used by default.
+        - string:
+            name: TF_M_EXTRAS_GERRIT_REFSPEC
+            default: '+refs/heads/master:refs/remotes/origin/master'
+            description: |
+              tf-m-extras refspec to use. The master branch is used by default.
+        - string:
            name: SPM_REFSPEC
            default: 'v2.10'
            description: |