MIPS: Jazz: Migrate to new platform makefile style.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --cc arch/mips/Kbuild.platforms
Simple merge

diff --cc arch/mips/Makefile
Simple merge

diff --cc arch/mips/jazz/Makefile
Simple merge

diff --cc arch/mips/jazz/Platform
Simple merge