UBUNTU: [Packaging] correct disablement of libbfd

UBUNTU: [Packaging] correct disablement of libbfd

We used to use HAVE_CPLUS_DEMANGLE to disable libbfd.  Upstream has changed
but the name of this control and its semantics.  It now only switches us
to use the c++ demangler and only then if libbfd is disabled.

Use the newly added HAVE_NO_LIBBFD to switch off libbfd and switch to
the new name of the c++ demangle selector.

BugLink: http://bugs.launchpad.net/bugs/1748922
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
(cherry-picked from commit 3be4ddf4fc06e6dcfef876020b6b4228dea5cfc1 bionic)
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Khalid Elmously <khalid.elmously@canonical.com>
Acked-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>