Linstor primary storages are not created for disabled hosts

##### ISSUE TYPE

* Bug Report

##### COMPONENT NAME

~~~
primary storage
Linstor
~~~

##### CLOUDSTACK VERSION

~~~
4.18.1
~~~

##### CONFIGURATION

Linstor

##### OS / ENVIRONMENT

##### SUMMARY

When adding a linstor primary storage it not added for disabled host i.e missing the entries in the table 'storage_pool_host_ref'. Once the host is enabled later the host can't be used to deploy to this primary storage. The issue appears likewise when a host is added when a linstor primary storage is disabled.

##### STEPS TO REPRODUCE

~~~
1. Disable a host in a cluster
2. Add a linstor primary storage
3. Check the table storage_pool_host_ref or enable the host and try a new instance deployment ( check the logs to confirm) or use tags to force it.
~~~

##### EXPECTED RESULTS

~~~
Disabled host/primary storage needs to be considered while adding host/primary storage.
~~~