iar-docker-images: Update crediential

Signed-off-by: Arthur She <arthur.she@linaro.org>
Change-Id: I81fdc95c511f7e63e482b929963cb38495c603c7
diff --git a/iar-docker-images.yaml b/iar-docker-images.yaml
index faf390c..e22d5a6 100644
--- a/iar-docker-images.yaml
+++ b/iar-docker-images.yaml
@@ -39,8 +39,8 @@
           credential-id: IAR_CLOUD_LICENSE_NR
           variable: IAR_LICENSE_NR
       - text:
-          credential-id: IAR_CLOUD_LICENSE_NR
-          variable: IAR_LICENSE_EMAIL 
+          credential-id: IAR_CLOUD_LICENSE_EMAIL
+          variable: IAR_LICENSE_EMAIL
     scm:
         - git:
             url: https://review.trustedfirmware.org/${GERRIT_PROJECT}