rPI: disable fontconfig (refs #26517)

fontconfig cannot be cross-compiled onto Linux with current contribs.
Until this is fixed, we need to turn it off to get CI out of its
metastable state.

extras/package/raspberry/build.sh

@@ -110,7 +110,7 @@ info "Building contribs"
 mkdir -p contrib/contrib-$SHORTARCH && cd contrib/contrib-$SHORTARCH
 
 # issue with arm detection of the target (detects i686)
-CONTRIBFLAGS="$CONTRIBFLAGS --disable-x265"
+CONTRIBFLAGS="$CONTRIBFLAGS --disable-x265 --disable-fontconfig --disable-ass --disable-bluray"
 
 ${SCRIPT_PATH}/../../../contrib/bootstrap --host=$TRIPLET $CONTRIBFLAGS