Further handle the lib64 -> lib symlinks.
It at least helps powerpc64 to build, and should innocuous to other archs.

/trunk/scripts/crosstool-NG.sh.in | 8 6 2 0 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

 # x86 specific options

 config ARCH_x86

     select ARCH_SUPPORT_ARCH

     select ARCH_SUPPORT_CPU

     select ARCH_SUPPORT_TUNE

     help

       The x86 architecture, as defined by:

         http://www.intel.com/