tf-a-main: Add "alias" prop for remaining tf-a-ci-gateway subjobs

So it was clear what exactly test groups they build.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: Ia186cdc8c1d35902ac06d45fdbc1a9fa036352e4
diff --git a/tf-a-main.yaml b/tf-a-main.yaml
index de150f4..3e0aac7 100644
--- a/tf-a-main.yaml
+++ b/tf-a-main.yaml
@@ -294,6 +294,7 @@
         condition: COMPLETED
         projects:
         - name: tf-a-ci-gateway
+          alias: tf-l3-code-coverage
           current-parameters: true
           kill-phase-on: NEVER
           predefined-parameters: TEST_GROUPS=tf-l3-code-coverage
@@ -303,6 +304,7 @@
         condition: COMPLETED
         projects:
         - name: tf-a-ci-gateway
+          alias: tf-l1-check-docs
           current-parameters: true
           kill-phase-on: NEVER
           predefined-parameters: TEST_GROUPS=tf-l1-check-docs