Added empty default for name parameter (#38514)

* Added empty default
Fix for issue https://github.com/ansible/ansible/issues/38482

lib/ansible/modules/cloud/amazon/ec2_ami.py

@@ -656,7 +656,7 @@ def main():
         virtualization_type=dict(default='hvm'),
         root_device_name=dict(),
         delete_snapshot=dict(default=False, type='bool'),
-        name=dict(),
+        name=dict(default=''),
         wait=dict(type='bool', default=False),
         wait_timeout=dict(default=900, type='int'),
         description=dict(default=''),
@@ -677,7 +677,6 @@ def main():
         argument_spec=argument_spec,
         required_if=[
             ['state', 'absent', ['image_id']],
-            ['state', 'present', ['name']],
         ]
     )