MIPS: move au1x00 SoC code to arch/mips/mach-au1x00

Move all au1x00 code out of arch/mips/cpu/mips32 to allow
unification of CPU code in a later patch. The reorganization
of the SoC specific header files will be done in a later patch
series.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Paul Burton <paul.burton@imgtec.com>
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 0a9e7e6..ff01bfe 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -8,3 +8,5 @@
 libs-$(CONFIG_CPU_MIPS32) += arch/mips/cpu/mips32/
 libs-$(CONFIG_CPU_MIPS64) += arch/mips/cpu/mips64/
 libs-y += arch/mips/lib/
+
+libs-$(CONFIG_SOC_AU1X00) += arch/mips/mach-au1x00/