Add retry to LVM deactivation
Add retry to LVM deactivation

We are seeing occassional failures to deactivate logical volumes in
tempest runs. We retry on the wait for the state change, but we if that
doesn't succeed we just give up.

This adds a retry to the whole deactivation process to see if requesting
again has better luck deactivating the volume.

Change-Id: I1f9546c39ea05abe524e6f38395754d331b201cd
Signed-off-by: Sean McGinnis <961eeb09b6d45516665e15b82e013282c4faf575@gmail.com>
(cherry picked from commit 49f3c57d977e009f715ba21dc7175c931bbb3f70)
(cherry picked from commit 1e3a08addffd9d38a83f8a498cc7f9f88c7adc21)

Datera/cinder,Datera/cinder