The mipsarch* MACHINE_OVERRIDES can be used to pass the same
parameters to MIPS pre-R2 and R6 ISA variants.
Use them to reduce duplication in supporting MIPS R6 ISA.
(From OE-Core rev: a48dbddab9524e78eeac53484d9dbfa0b484c561)
Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>