Rename local variable component to validation_component for Upstream CI

The usage of the component variable for the local and check jobs is
dangerous since this variable is used by the whole component chain for TripleO.
This review renamed it to validation_component.

Change-Id: Icd8e64282306479a84fc6240142ddcb28ce433e5

.zuul.yaml

@@ -51,7 +51,7 @@
       featureset: '052'
       validate_services: true
       enable_validation: true
-      component: validation
+      validation_component: validation
 
 - project:
     templates:

roles/validations/defaults/main.yaml

@@ -6,7 +6,7 @@ vf_log_dir: "{{ ansible_user_dir }}/logs"
 ansible_dir: ""
 
 inventory: "localhost"
-component: "{{ job.component|default('validation') }}"
+validation_component: "{{ job.component|default('validation') }}"
 # both commands can be used:
 # "openstack tripleo validator" or "validation"
 # the default is validation because this is the 1st entry available on

roles/validations/tasks/main.yaml

@@ -42,13 +42,13 @@
 - include: run.yaml name="{{ item }}"
   when:
     - run_validation|default(false)|bool
-    - component | length > 0
-  with_dict: "{{ validations_list[component] }}"
+    - validation_component | length > 0
+  with_dict: "{{ validations_list[validation_component] }}"
 
 - include: list.yaml
 
 - include: show.yaml name="{{ item }}"
   when:
     - run_validation|default(false)|bool
-    - component | length > 0
-  with_dict: "{{ validations_list[component] }}"
+    - validation_component | length > 0
+  with_dict: "{{ validations_list[validation_component] }}"