scripts/xldd: fix pattern matching with new binutils

New binutils (circa 2.2x?) append 'program interpreter' to the
(NEEDED) line for the dynamic linker, which breaks our current
pattern.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

 reporter_name="Harold Grovesteen"

 reporter_url="http://sourceware.org/ml/crossgcc/2009-11/msg00052.html"

 reporter_comment=""