ceph: continue to get available devices if failed to get a device info
ceph: continue to get available devices if failed to get a device info

getAvailableDevices() should continue if something wrong happens in a device than returning
immediately with error.

Closes: https://github.com/rook/rook/issues/7543

Signed-off-by: Satoru Takeuchi <0be322b419f8cd46ee75447832ef0476dff222bc@gmail.com>

rook/nfs,rook/rook,rook/rook,rook/nfs,rook/nfs,rook/rook,rook/rook,rook/rook