There are CPUs/bitfiles available for use with SEAD3 boards which
implement release 6 of the MIPS architecture. Allow building the kernel
for such a system.
Signed-off-by: NPaul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12372/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>