[yocto] prelink-cross project update

[Mark Hatle]

A new version of the prelink-cross has been pushed to the repository.

There are no upstream changes to the main prelink component, all changes are 
specific to the cross functionality.  Below is the Changelog:

2011-12-08  Mark Hatle <mark.hatle at windriver.com>
         * rtld/rtld.c: Fix an issue where missing objects would trigger
           an assert in dl-version.c
         * rtld/rtld.h: Add _dl_new_object prototype
         * rtld/rtld.c: Add support for $ORIGIN, $PLATFORM and $LIB.
           Note: $PLATFORM = ""