Corrected underscores in field names (#15979)

Author: melinath

mmv1/products/compute/WireGroup.yaml

@@ -112,7 +112,7 @@ properties:
             properties:
               - name: interconnect
                 type: string
-              - name: vlan_tags
+              - name: vlanTags
                 type: Array
                 description: |
                   VLAN tags for the interconnect.

mmv1/products/datacatalog/Tag.yaml

@@ -141,7 +141,7 @@ properties:
       name: field_value
       type: NestedObject
       properties:
-        - name: 'display_name'
+        - name: 'displayName'
           type: String
           description: |
             The display name of this field