Add debian/apertis/lintian

Add debian/apertis/lintian to enable lintian for apertis-dev-tools package.

Fixes: https://phabricator.apertis.org/T9470

aac/Makefile

@@ -14,5 +14,5 @@ install:
 	$(INSTALL) -d $(AAC_CONFDIR)
 	for t in $(AAC_CONF); \
 	do \
-		$(INSTALL) $$t $(AAC_CONFDIR); \
+		$(INSTALL) $$t -m 644 $(AAC_CONFDIR); \
 	done