recipes: Inherit perlnative for pod2man

replace host version of pod2man perl-native provides, helps in
improving reproducability

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-networking/recipes-protocols/pptp-linux/pptp-linux_1.10.0.bb

@@ -9,6 +9,8 @@ SECTION = "net"
 LICENSE = "GPLv2+"
 LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263"
 
+inherit perlnative
+
 SRC_URI = "${SOURCEFORGE_MIRROR}/sourceforge/pptpclient/pptp-${PV}.tar.gz \
            file://options.pptp \
            "