Add FBA prep label

Author: sriishtyb

models/amazon-warehousing-and-distribution-model/awd_2024-05-09.json

@@ -4960,7 +4960,7 @@
       ]
     },
     "LabelOwner": {
-      "description": "The entity that labels the products.",
+      "description": "The entity that labels the products. `AMAZON` is not an accepted value in the US marketplace.",
       "enum": [
         "AMAZON",
         "SELF"
@@ -5328,7 +5328,7 @@
       "type": "object"
     },
     "PrepOwner": {
-      "description": "The owner of the preparations, if special preparations are required.",
+      "description": "The owner of the preparations, if special preparations are required. `AMAZON` is not an accepted value in the US marketplace.",
       "enum": [
         "AMAZON",
         "SELF"