[MRS] add support for changing some of the mapreduce_cluster resource arguments

[kolsean]

Please add the ability to modify the following huaweicloud_mapreduce_cluster resource arguments:

name subnet_id enterprise_project_id log_collection

Now all of there arguments have ForceNew: true property, but it seems that API has support for it.

[ShiChangkuo]

@kolsean only name can be updated by API until now. https://support.huaweicloud.com/intl/en-us/api-mrs/mrs_02_0201.html