Better resourceref flexibility (#149)

<!-- This change is generated by MagicModules. -->
/cc @rambleraptor

plugins/modules/gcp_compute_target_http_proxy.py

@@ -66,10 +66,9 @@ options:
     - A reference to the UrlMap resource that defines the mapping from URL to the
       BackendService.
     - 'This field represents a link to a UrlMap resource in GCP. It can be specified
-      in two ways. You can add `register: name-of-resource` to a gcp_compute_url_map
-      task and then set this url_map field to "{{ name-of-resource }}" Alternatively,
-      you can set this url_map to a dictionary with the selfLink key where the value
-      is the selfLink of your UrlMap'
+      in two ways. First, you can place in the selfLink of the resource here as a
+      string Alternatively, you can add `register: name-of-resource` to a gcp_compute_url_map
+      task and then set this url_map field to "{{ name-of-resource }}"'
     required: true
 extends_documentation_fragment: gcp
 notes:
@@ -165,7 +164,7 @@ urlMap:
   description:
   - A reference to the UrlMap resource that defines the mapping from URL to the BackendService.
   returned: success
-  type: dict
+  type: str
 '''
 
 ################################################################################
@@ -189,7 +188,7 @@ def main():
             state=dict(default='present', choices=['present', 'absent'], type='str'),
             description=dict(type='str'),
             name=dict(required=True, type='str'),
-            url_map=dict(required=True, type='dict'),
+            url_map=dict(required=True)
         )
     )