ovirt_host_pm: Fix to powermanagement module (#47659)

This PR is fixing following issues:

 1) Don't try to check password.
 2) Check options.
 3) Order wasn't adding at the end, as doc says.

Signed-off-by: Ondra Machacek <omachace@redhat.com>

lib/ansible/modules/cloud/ovirt/ovirt_host_pm.py

@@ -144,7 +144,13 @@ class HostModule(BaseModule):
 
 class HostPmModule(BaseModule):
 
+    def pre_create(self, entity):
+        # Save the entity, so we know if Agent already existed
+        self.entity = entity
+
     def build_entity(self):
+        last = next((s for s in sorted([a.order for a in self._service.list()])), 0)
+        order = self.param('order') if self.param('order') is not None else self.entity.order if self.entity else last + 1
         return otypes.Agent(
             address=self._module.params['address'],
             encrypt_options=self._module.params['encrypt_options'],
@@ -158,14 +164,23 @@ class HostPmModule(BaseModule):
             port=self._module.params['port'],
             type=self._module.params['type'],
             username=self._module.params['username'],
-            order=self._module.params.get('order', 100),
+            order=order,
         )
 
     def update_check(self, entity):
+        def check_options():
+            if self.param('options'):
+                current = []
+                if entity.options:
+                    current = [(opt.name, str(opt.value)) for opt in entity.options]
+                passed = [(k, str(v)) for k, v in self.param('options').items()]
+                return sorted(current) == sorted(passed)
+            return True
+
         return (
+            check_options() and
             equal(self._module.params.get('address'), entity.address) and
             equal(self._module.params.get('encrypt_options'), entity.encrypt_options) and
-            equal(self._module.params.get('password'), entity.password) and
             equal(self._module.params.get('username'), entity.username) and
             equal(self._module.params.get('port'), entity.port) and
             equal(self._module.params.get('type'), entity.type) and