fuel-plugin: update libgcrypt version

fuel-plugin: update libgcrypt version

Canonical have bumped libgcrypt11-dev from package 2ubuntu4.2 to 4.3

Change-Id: Id0572a9a4c8b89f05e5b20e3e385193d2a9326c8
Reviewed-by: Jonas Bjurel <jonas.bjurel@ericsson.com>
Reviewed-by: Mark D. Gray <mark.d.gray@intel.com>
Reviewed-by: Ruijing Gao <ruijing.guo@intel.com>
Reviewed-by: Donald Dugger <donald.d.dugger@intel.com>
Reviewed-by: Michal Skalski <mskalski@mirantis.com>
Reviewed-by: Narinder Gupta <narinder.gupta@canonical.com>
(cherry picked from commit 8e1ad8a230ec6121b73117508b3b7b6bf1c16997)