Reverting some ResourceRef changes (#226)

Signed-off-by: Modular Magician <magic-modules@google.com>

plugins/modules/gcp_sql_user.py

@@ -61,9 +61,10 @@ options:
     description:
     - The name of the Cloud SQL instance. This does not include the project ID.
     - 'This field represents a link to a Instance resource in GCP. It can be specified
-      in two ways. First, you can place in the name of the resource here as a string
-      Alternatively, you can add `register: name-of-resource` to a gcp_sql_instance
-      task and then set this instance field to "{{ name-of-resource }}"'
+      in two ways. First, you can place a dictionary with key ''name'' and value of
+      your resource''s name Alternatively, you can add `register: name-of-resource`
+      to a gcp_sql_instance task and then set this instance field to "{{ name-of-resource
+      }}"'
     required: true
   password:
     description:
@@ -118,7 +119,7 @@ instance:
   description:
   - The name of the Cloud SQL instance. This does not include the project ID.
   returned: success
-  type: str
+  type: dict
 password:
   description:
   - The password for the user.
@@ -147,7 +148,7 @@ def main():
             state=dict(default='present', choices=['present', 'absent'], type='str'),
             host=dict(required=True, type='str'),
             name=dict(required=True, type='str'),
-            instance=dict(required=True),
+            instance=dict(required=True, type='dict'),
             password=dict(type='str'),
         )
     )