ios_ntp: Switch interface to GigabitEthernet0/1 for tests (#56964)

* ios_ntp: Switch interface to GigabitEthernet0/1 for tests

Lets use an interface we know that exists for testing, in some cases
Loopback0 maybe not be configured.

Signed-off-by: Paul Belanger <pabelanger@redhat.com>

* ios_ntp: properly register result variable for testing

This is currently broken, and tests don't work. Fix this by properly
registering the result variable.

Signed-off-by: Paul Belanger <pabelanger@redhat.com>

test/integration/targets/ios_ntp/tests/cli/ntp_configuration.yaml

@@ -2,7 +2,7 @@
 - name: remove NTP (if set)
   ios_ntp: &remove
     server: 10.75.32.5
-    source_int: Loopback0
+    source_int: "{{ test_interface }}"
     acl: NTP_ACL
     logging: true
     key_id: 10
@@ -16,8 +16,9 @@
   - name: configure NTP
     ios_ntp: &config
       server: 10.75.32.5
-      source_int: Loopback0
+      source_int: "{{ test_interface }}"
       state: present
+    register: result
 
   - assert: &true
       that:
@@ -25,6 +26,7 @@
 
   - name: idempotence check
     ios_ntp: *config
+    register: result
 
   - assert: &false
       that:
@@ -35,11 +37,13 @@
       acl: NTP_ACL
       logging: true
       state: present
+    register: result
 
   - assert: *true
 
   - name: idempotence check
     ios_ntp: *config1
+    register: result
 
   - assert: *false
 
@@ -49,11 +53,13 @@
       auth_key: 15435A030726242723273C21181319000A
       auth: true
       state: present
+    register: result
 
   - assert: *true
 
   - name: idempotence check
     ios_ntp: *config2
+    register: result
 
   - assert: *false
 
@@ -62,11 +68,13 @@
       acl: NTP_ACL
       logging: true
       state: absent
+    register: result
 
   - assert: *true
 
   - name: idempotence check
     ios_ntp: *config3
+    register: result
 
   - assert: *false