Download tf-m-extras in per-patch, nightly and release jobs

RSS builds are also covered in per-patch, nightly and release jobs.
Because RSS depends on tf-m-extras repo, download tf-m-extras repo via
clone.sh to reduce the workload of git clone.

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: I2759dbe30d62a1beb1dd85563a6a480e8cadb14b
diff --git a/tf-m-cppcheck.yaml b/tf-m-cppcheck.yaml
index e78bc1e..ec79660 100644
--- a/tf-m-cppcheck.yaml
+++ b/tf-m-cppcheck.yaml
@@ -85,6 +85,17 @@
             TAG_NAME                 : Pick up a tagged version
             full commit hash         : Pick up a specific commit
       - string:
+          name: 'TFM_EXTRAS_URL'
+          default: 'https://git.trustedfirmware.org/TF-M/tf-m-extras.git'
+      - string:
+          name: 'TFM_EXTRAS_REFSPEC'
+          default: ''
+          description: |
+            Specify which tf-m-extras version to use
+            refs/heads/<branch_name> : Pick up latest HEAD on branch
+            TAG_NAME                 : Pick up a tagged version
+            full commit hash         : Pick up a specific commit
+      - string:
           name: 'QCBOR_URL'
           default: 'https://github.com/laurencelundblade/QCBOR.git'
       - string: