Fix EXTRA_BAREMETAL_OPTS

Replace only the first '=' in each item in
EXTRA_BAREMETAL_OPTS to handle multiple '='.

Change-Id: I2d4c1b664425bf35bcdbf0bda53cfda4c66b1c6d
Update cinder to use rootwrap_config

Move from using deprecated option root_helper to rootwrap_config

Fix bug 1130890

Change-Id: Iea8ad55f29bd74f2805c05d417ff56ab6afe6d72
Merge "Update cinder to use rootwrap_config"
Merge "Fix EXTRA_BAREMETAL_OPTS"