ovirt_host: Fix kernel_params elemets (#608)

* ovirt_host: Fix kernel_params elemets

* Add changelog

changelogs/fragments/608-fix-ovirt_host-kernel_params-type.yml

@@ -0,0 +1,3 @@
+---
+bugfixes:
+  - ovirt_host - Fix kernel_params elemets type (https://github.com/oVirt/ovirt-ansible-collection/pull/608).

plugins/modules/ovirt_host.py

@@ -115,7 +115,7 @@
                to be I(reinstalled) successfully and then to be I(rebooted) for kernel boot parameters
                to be applied."
         type: list
-        elements: dict
+        elements: str
     hosted_engine:
         description:
             - "If I(deploy) it means this host should deploy also hosted engine
@@ -513,7 +513,7 @@ def main():
         reboot_after_installation=dict(default=None, type='bool'),
         timeout=dict(default=600, type='int'),
         override_display=dict(default=None),
-        kernel_params=dict(default=None, type='list', elements='dict'),
+        kernel_params=dict(default=None, type='list', elements='str'),
         hosted_engine=dict(default=None, choices=['deploy', 'undeploy']),
         power_management_enabled=dict(default=None, type='bool'),
         activate=dict(default=True, type='bool'),