Handle common argument in aggregate parameter for vyos module (#28182)

* Handle common agrument in aggregate parameter for vyos module

*  Add supoort to set parameter in aggregate to it's respctive
   top level argument if value not provided in aggregate.
*  Aggregate argument spec validation
*  Documentation for aggregate

* Fix unit test failure

lib/ansible/modules/network/interface/net_interface.py

@@ -87,6 +87,24 @@ EXAMPLES = """
     name: ge-0/0/1
     description: test-interface
     enabled: False
+
+- name: Create interface using aggregate
+  net_interface:
+    aggregate:
+      - name: ge-0/0/1
+        description: test-interface-1
+      - name: ge-0/0/2
+        description: test-interface-2
+    speed: 1g
+    duplex: full
+    mtu: 512
+
+- name: Delete interface using aggregate
+  junos_interface:
+    aggregate:
+      - name: ge-0/0/1
+      - name: ge-0/0/2
+    state: absent
 """
 
 RETURN = """

lib/ansible/modules/network/interface/net_linkagg.py

@@ -70,6 +70,18 @@ EXAMPLES = """
     name: bond0
     state: absent
 
+- name: Create aggregate of linkagg definitions
+  net_linkagg:
+    aggregate:
+        - { name: bond0, members: [eth1] }
+        - { name: bond1, members: [eth2] }
+
+- name: Remove aggregate of linkagg definitions
+  net_linkagg:
+    aggregate:
+      - name: bond0
+      - name: bond1
+    state: absent
 """
 
 RETURN = """

lib/ansible/modules/network/interface/net_lldp_interface.py

@@ -58,6 +58,20 @@ EXAMPLES = """
   net_lldp_interface:
     name: eth1
     state: absent
+
+- name: Create aggregate of LLDP interface configurations
+  net_lldp_interface:
+    aggregate:
+    - name: eth1
+    - name: eth2
+    state: present
+
+- name: Delete aggregate of LLDP interface configurations
+  net_lldp_interface:
+    aggregate:
+    - name: eth1
+    - name: eth2
+    state: absent
 """
 
 RETURN = """