Update vsphere-problem-detector with current implementation

Syncing current implementation into the enhancement. We did not implement
some metrics, because we no longer think they're useful.

Adding Datastore Type to be able to tell what our customers use, because
NFS may be deprecated.

enhancements/storage/vsphere-problem-detector.md

@@ -96,12 +96,9 @@ We want these metrics to be transferred via telemetry to us:
 * HW version of vSphere VMs.
 * vCenter version.
 * ESXi host version (of each host).
-* List of installed storage plugins (3rd party vendor VIBs) - if possible.
+* Count of each datastore types used in the cluster (vmfs, nfs, vsan or virtual volumes).
 * List of enabled features:
-  * HA
-  * DRS
-  * SDRS w/DatastoreCluster
-
+  * SDRS w/DatastoreCluster.
 
 ### User Stories
 
@@ -190,16 +187,16 @@ All these are subject of change, see Open Questions below.
 
 #### Examples
 
-##### Dev Preview -> Tech Preview
+#### Dev Preview -> Tech Preview
 
 * The operator is installed by default in all OCP vSphere clusters and documented in our docs.
 
-##### Tech Preview -> GA
+#### Tech Preview -> GA
 
 * More testing (upgrade, scale).
 * At least 2 releases passed since tech preview to get feedback from customers & support.
 
-##### Removing a deprecated feature
+#### Removing a deprecated feature
 
 The operator is mostly "invisible" to customers, we can remove it without breaking anything.