Test script for ELF32 was still trying to cd into bd-elf32-gdb, which doesn't exist in this version of toolchain.

2013-03-22  Anton Kolesov <anton.kolesov@synopsys.com>

    * run-elf32-tests.sh: Fix invalid reference to GDB build directory. GDB
    used to be built in separate directory but test script was still trying to
    use the old directory.