dvb-apps: Allow insecure inc paths

Latest perl have switched the default to not allow the unsafe include
paths like current dir (.), but dvb-apps depend on this behaviour

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Andreas Müller <schnitzeltony@gmail.com>

meta-multimedia/recipes-multimedia/dvb-apps/dvb-apps_1.1.1.bb

@@ -20,6 +20,8 @@ inherit perlnative
 
 export enable_static="no"
 
+export PERL_USE_UNSAFE_INC = "1"
+
 do_configure() {
     sed -i -e s:/usr/include:${STAGING_INCDIR}:g util/av7110_loadkeys/generate-keynames.sh
 }