Don't build and install GDB for now - it's broken.

2013-02-21  Jeremy Bennett <jeremy.bennett@embecosm.com>

	* build-elf32.sh: Don't build and install GDB.
Merge remote-tracking branch 'arc/arc_4_8-toolchain-dev' into arc_4_8-toolchain-gdb-testing

Conflicts:
	ChangeLog