mdadm: fix usrmerge install path
Update /lib to $nonarch_base_libdir to fix
the below error when usrmerge enabled in
DISTRO_FEATURES.
ERROR: mdadm-4.0-r0 do_package_qa: QA Issue: mdadm package is not obeying usrmerge distro feature. /lib should be relocated to /usr. [usrmerge]
Signed-off-by: Mingli Yu <Mingli.Yu@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>