libxml-parser-perl: fix "...contains bad RPATH"

libxml-parser-perl: fix "...contains bad RPATH"

The perl distribution "XML-Parser" relies for configuration
on the tooling of Devel::CheckLib - which is not aware of
sysroot locations nor of reasonable compiler/link definitions
from outside.

This causes

    ERROR: libxml-parser-perl-2.44-r0 do_package_qa: QA Issue: package libxml-parser-perl contains bad RPATH ${BUILDDIR}/tmp/work/core2-64-poky-linux/libxml-parser-perl/2.44-r0/recipe-sysroot/usr/lib in file ${BUILDDIR}/tmp/work/core2-64-poky-linux/libxml-parser-perl/2.44-r0/packages-split/libxml-parser-perl/usr/lib/perl/vendor_perl/5.24.4/auto/XML/Parser/Expat/Expat.so
    package libxml-parser-perl contains bad RPATH ${BUILDDIR}/tmp/work/core2-64-poky-linux/libxml-parser-perl/2.44-r0/recipe-sysroot/usr/lib in file ${BUILDDIR}/tmp/work/core2-64-poky-linux/libxml-parser-perl/2.44-r0/packages-split/libxml-parser-perl/usr/lib/perl/vendor_perl/5.24.4/auto/XML/Parser/Expat/Expat.so [rpaths]
    ERROR: libxml-parser-perl-2.44-r0 do_package_qa: QA run found fatal errors. Please consider fixing them.
    ERROR: libxml-parser-perl-2.44-r0 do_package_qa: Function failed: do_package_qa

It's strongly encouraged to the maintainer @toddr to rework the
toolchain for up to date environments.

[RP: Added fix for nativesdk RPATH issues too]

(From OE-Core rev: b103bb9426c0e5e3ef0fe0c34274ad3a06af8b6a)

Signed-off-by: Jens Rehsack <sno@netbsd.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>