MIPS: PNX833x: Migrate to new platform makefile style.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/pnx833x/Makefile b/arch/mips/pnx833x/Makefile
new file mode 100644
index 0000000..02c4698
--- /dev/null
+++ b/arch/mips/pnx833x/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_SOC_PNX833X)	+= common/
+obj-$(CONFIG_NXP_STB220)	+= stb22x/
+obj-$(CONFIG_NXP_STB225)	+= stb22x/