Reverting some ResourceRef changes (#226)

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

plugins/modules/gcp_compute_firewall.py

@@ -146,9 +146,10 @@ options:
       networks/my-network projects/myproject/global/networks/my-network global/networks/default
       .'
     - 'This field represents a link to a Network resource in GCP. It can be specified
-      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_network
-      task and then set this network field to "{{ name-of-resource }}"'
+      in two ways. First, you can place a dictionary with key ''selfLink'' and value
+      of your resource''s selfLink Alternatively, you can add `register: name-of-resource`
+      to a gcp_compute_network task and then set this network field to "{{ name-of-resource
+      }}"'
     required: false
     default:
       selfLink: global/networks/default
@@ -341,7 +342,7 @@ network:
     networks/my-network projects/myproject/global/networks/my-network global/networks/default
     .'
   returned: success
-  type: str
+  type: dict
 priority:
   description:
   - Priority for this rule. This is an integer between 0 and 65535, both inclusive.
@@ -433,7 +434,7 @@ def main():
             direction=dict(type='str', choices=['INGRESS', 'EGRESS']),
             disabled=dict(type='bool'),
             name=dict(required=True, type='str'),
-            network=dict(default=dict(selfLink='global/networks/default')),
+            network=dict(default=dict(selfLink='global/networks/default'), type='dict'),
             priority=dict(default=1000, type='int'),
             source_ranges=dict(type='list', elements='str'),
             source_service_accounts=dict(type='list', elements='str'),