Decouple config and state check in vlan and vrf network modules (#36386)

* Decouple config and state check in {network_os }_vlan and { network_os }_vrf modules

Fixes #35567
Fixes #34754

`interfaces` option is used for configuration as well as operational state
check. If interface is configured to given vlan or vrf but if
operational state of interface is disabled it results in module failure.

Fix is to decouple same option usage for config and state.
With this fix `interfaces` is used as config option and a new
option named `associated_interfaces` will be used for intent check
for assigned interfaces.

* Fix CI failures

* Fix review comment

* Fixed integration test failure

test/integration/targets/ios_vlan/tests/cli/basic.yaml

@@ -72,6 +72,31 @@
       that:
         - "result.changed == false"
 
+  - name: Check interface assigned to vrf (intent)
+    ios_vlan:
+      vlan_id: 100
+      associated_interfaces:
+        - GigabitEthernet0/1
+        - GigabitEthernet0/2
+      provider: "{{ cli }}"
+    register: result
+
+  - assert:
+      that:
+        - "result.failed == false"
+
+  - name: Check interface assigned to vrf (fail)
+    ios_vlan:
+      vlan_id: 100
+      associated_interfaces:
+        - test
+      provider: "{{ cli }}"
+    register: result
+
+  - assert:
+      that:
+        - "result.failed == True"
+
   - name: Remove interface from vlan
     ios_vlan: &single_int
       vlan_id: 100