Docker: Update TF-M to use new docker image

This change removes a generic image and splits out TF-A and TF-M to use
a different docker images

Change-Id: I36db13cfdffe75273f992f09d7314bd089faa60e
Signed-off-by: Benjamin Copeland <ben.copeland@linaro.org>
diff --git a/jenkins/build-config.jpl b/jenkins/build-config.jpl
index 60af3dd..9a8e143 100644
--- a/jenkins/build-config.jpl
+++ b/jenkins/build-config.jpl
@@ -9,9 +9,9 @@
 @Library('trustedfirmware') _
 import org.trustedfirmware.Gerrit
 
-def nodeLabel = "docker-amd64-bionic"
+def nodeLabel = "docker-amd64-tf-m-bionic"
 if (env.COMPILER == "ARMCLANG") {
-  nodeLabel = "docker-amd64-bionic"
+  nodeLabel = "docker-amd64-tf-m-bionic"
 }
 
 node(nodeLabel) {