Now that we issue mgr/volume commands and rados
get/put on pool with "ganesha_rados_store_pool_name"
name via a rados client, the auth ID used by the
driver/rados client would need different capabilities.
The auth ID will now require:
mon 'allow r'
mgr 'allow rw'
osd 'allow rw pool=<ganesha_rados_store_pool_name>"
The driver's auth ID does not need any MDS capability,
requires reduced MON and OSD capability, and extra write
capability for MGR.
Closes-Bug: #1925525
Change-Id: Ib3015442eb4633fb208eb10af1f4150f189c3e14