package/pppd: add SELinux module

Support for pppd is added by the services/ppp module in the SELinux
refpolicy.

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/pppd/pppd.mk

@@ -12,6 +12,7 @@ PPPD_LICENSE_FILES = \
 	pppdump/bsd-comp.c pppd/ccp.c pppd/plugins/passprompt.c
 PPPD_CPE_ID_VENDOR = samba
 PPPD_CPE_ID_PRODUCT = ppp
+PPPD_SELINUX_MODULES = ppp
 
 # 0001-pppd-Fix-bounds-check.patch
 PPPD_IGNORE_CVES += CVE-2020-8597