perl: Fix perl module dependency issues

With the move of the strict/vars/config/warnings modules to the main perl
recipe, we need to RPROVIDE those modules to ensure that package dependencies
on those modules continue to work correctly.

(From OE-Core rev: fe88ae8605f22d9075e4200159aa66605ec36587)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/perl/perl_5.14.2.bb

@@ -250,6 +250,7 @@ FILES_${PN} = "${bindir}/perl ${bindir}/perl${PV} \
                ${libdir}/perl/${PV}/warnings \
                ${libdir}/perl/${PV}/vars.pm \
               "
+RPROVIDES_${PN} += "perl-module-strict perl-module-vars perl-module-config perl-module-warnings"
 FILES_${PN}-dev = "${libdir}/perl/${PV}/CORE"
 FILES_${PN}-lib = "${libdir}/libperl.so* \
                    ${libdir}/perl5 \