d/control: add dwarves B-D

without it the build fails for lack of `pahole`. note that in bullseye
and later, the dwarves-dfsg source package got renamed, and the pahole
binary split into its own binary package called `pahole`. the required
version is only available via buster-backports.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>

debian/control.in

@@ -9,6 +9,7 @@ Build-Depends: asciidoc-base,
                cpio,
                debhelper (>= 10~),
                dh-python,
+               dwarves (>= 1.13~),
                file,
                flex,
                gcc (>= 8.3.0-6),