Use correct name for linux-headers-* package

In Debian there is no package `linux-headers-generic` and corresponding
packages includes target architecture in their name.

Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Reviewed-by: Frédéric Dalleau <frederic.dalleau@collabora.co.uk>
Differential Revision: https://phabricator.apertis.org/D7861

apertis-ospack.yaml

@@ -318,7 +318,11 @@ actions:
       - libwnck-3-dev
       - libxslt1-dev
       - libxt-dev
-      - linux-headers-generic
+  {{ if eq $architecture "armhf" }}
+      - linux-headers-armmp
+  {{ else }}
+      - linux-headers-{{$architecture}}
+  {{ end }}
       - lsb-release
       - ltrace
       - openssh-client