Tagging fragment - Move simplest cases over to the docs fragment. (an…

…sible-collections#1198)

Tagging fragment - networkfirewall - Move over to the docs fragment 

SUMMARY
The networkfirewall tests are slow enough to be flakey, split this off.
ISSUE TYPE

Feature Pull Request

COMPONENT NAME
networkfirewall
ADDITIONAL INFORMATION
The change itself was approved on ansible-collections#1182

networkfirewall.py

@@ -40,14 +40,6 @@
       - A description for the firewall.
     required: false
     type: str
-  tags:
-    description:
-      - A dictionary representing the tags associated with the firewall.
-      - 'For example C({"Example Tag": "some example value"})'
-      - Unless I(purge_tags=False) all other tags will be removed from the
-        firewall.
-    type: dict
-    required: false
   delete_protection:
     description:
       - When I(delete_protection=True), the firewall is protected from deletion.
@@ -69,14 +61,6 @@
       - Defaults to C(false) when not provided on creation.
     type: bool
     required: false
-  purge_tags:
-    description:
-      - If I(purge_tags=true) and I(tags) is defined existing tags will be
-        purged from the resource to match exactly what is defined by the
-        I(tags) parameter.
-    type: bool
-    required: false
-    default: True
   wait:
     description:
       - On creation, whether to wait for the firewall to reach the C(READY)
@@ -117,10 +101,12 @@
     required: false
     aliases: ['firewall_policy_arn']
 
-author: Mark Chappell (@tremble)
+author:
+  - Mark Chappell (@tremble)
 extends_documentation_fragment:
   - amazon.aws.aws
   - amazon.aws.ec2
+  - amazon.aws.tags
 '''
 
 EXAMPLES = '''
@@ -296,7 +282,7 @@ def main():
         arn=dict(type='str', required=False, aliases=['firewall_arn']),
         state=dict(type='str', required=False, default='present', choices=['present', 'absent']),
         description=dict(type='str', required=False),
-        tags=dict(type='dict', required=False),
+        tags=dict(type='dict', required=False, aliases=['resource_tags']),
         purge_tags=dict(type='bool', required=False, default=True),
         wait=dict(type='bool', required=False, default=True),
         wait_timeout=dict(type='int', required=False),