update manager parallel remediation

[tdubb123]

when i patch hosts from the lcuster level and enable parallel remediation, why doest vcenter take into account how overloaded the hosts are? I have 9 hosts and it tries to put all the hosts into matiintenance mode. and other hosts now is maxes to 99% memory utilization because of this.

[jburen]

I thought there are two settings for this:

- Automatically determine the maximum number of concurrently remediated hosts in a cluster

- Limit the number of concurrently remediated hosts in each cluster to x

If you want to be sure that your hosts are not too heavily loaded during remediation choose the second option.