Evaluate device path for lvm
Evaluate device path for lvm

We have a bug report where a user specified a symbolic link to storage
driver.  The issue is the physical device is not predictable but the link
is, so evaluating sym links makes the symlink path supportable.

Signed-off-by: Daniel J Walsh <7800de746fd39599bc46177380ea6aede7e31e16@redhat.com>

containers/storage,rhatdan/storage,rhatdan/storage,rhatdan/storage,containers/storage,containers/storage