tf-a-tftf-gerrit-tforg-l1/l2: Add SPM_REFSPEC, CI_REFSPEC, MBEDTLS_URL

Required to support building for multiple branches (e.g. mainline/LTS).

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: I0f2ea0c5e15e591dd410c83ee29cd13f09bd973a
diff --git a/tf-a-tftf-gerrit-tforg-l1.yaml b/tf-a-tftf-gerrit-tforg-l1.yaml
index 5e075fb..afa3530 100644
--- a/tf-a-tftf-gerrit-tforg-l1.yaml
+++ b/tf-a-tftf-gerrit-tforg-l1.yaml
@@ -37,6 +37,17 @@
             default: ${GERRIT_REFSPEC}
             description: 'Parameter only used by the clone script'
         - string:
+           name: SPM_REFSPEC
+           default: '+refs/heads/master:refs/remotes/origin/master'
+           description: |
+             SPM(Hafnium) refspec to use. The master branch is used by default.
+        - string:
+            name: CI_REFSPEC
+            default: '+refs/heads/master:refs/remotes/origin/master'
+        - string:
+            name: MBEDTLS_URL
+            default: 'https://github.com/Mbed-TLS/mbedtls/archive/mbedtls-3.4.1.tar.gz'
+        - string:
             name: SHARE_FOLDER
             default: '/srv/shared/${JOB_NAME}/${BUILD_NUMBER}'
             description: 'Folder containing shared repositories for downstream pipeline jobs'