fuel plugin: Pick updated pcre packages.

Package versions of pcre 8.31 packages were bumped from 2ubuntu2.1 to
2ubuntu2.2.

Change-Id: I5a48af87ff36375f41f2bb12b20c4c4d272d00c6
Signed-off-by: Billy O'Mahony <billy.o.mahony@intel.com>
Reviewed-by: Jonas Bjurel <jonas.bjurel@ericsson.com>
Reviewed-by: Mark D. Gray <mark.d.gray@intel.com>
Reviewed-by: Tom Herbert <therbert@redhat.com>
Reviewed-by: Michal Skalski <mskalski@mirantis.com>
(cherry picked from commit 37c978c1fa84cd20f449aa1de7a74024cc9a8d13)