debug/gdb: update Linaro GDB revision for 2013.05

Update Linaro GDB with the latest available revision.

Signed-off-by: "Michael Hope" <michaelh@juju.net.nz>
Message-Id: <bea34f42853a9d87a628.1372452016@localhost>
Patchwork-Id: 255667

#!/bin/sh

set -e

printf "Running autoconf...\n"

autoconf -Wall --force

printf "Done. You may now run:\n    ./configure\n"