swupdate: replace /usr/lib in init.d to support multilib images
swupdate: replace /usr/lib in init.d to support multilib images

This should reference ${libdir}, since that's where swupdate.sh gets
installed.

Signed-off-by: Kyle Russell <6ed7f5baeacb867b3bec5843ef4ed82b42c3ff2a@gmail.com>
Acked-by: Stefano Babic <2c2905e0c2877c7e4ce40c7425e972302953fda5@denx.de>

sbabic/meta-swupdate,sbabic/meta-swupdate