samples: canbus: isotp: add missing isotp tag

Add missing "isotp" tag to the CAN bus ISO-TP sample.

Signed-off-by: Henrik Brix Andersen <[email protected]>

Author: henrikbrixandersen

samples/subsys/canbus/isotp/sample.yaml

@@ -2,7 +2,7 @@ sample:
   name: ISO-TP lib sample
 tests:
   sample.subsys.canbus.isotp:
-    tags: can
+    tags: can isotp
     depends_on: can
     filter: dt_chosen_enabled("zephyr,canbus")
     harness: console