array params can't be used in scripts?

kernel-build-trimslice.yaml

@@ -10,9 +10,8 @@ spec:
     value: '5.10'
   - name: config
     value: trimslice
-  - name: make_flags
-    value:
-    - LOCALVERSION=-trimslice1
+  - name: localversion
+    value: -trimslice1
   resources:
     inputs:
     - name: kernel-configs