MIPS: WRPPMC: Migrate to new platform makefile style.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/Kbuild.platforms b/arch/mips/Kbuild.platforms
index 61f150b..ad35f7b 100644
--- a/arch/mips/Kbuild.platforms
+++ b/arch/mips/Kbuild.platforms
@@ -15,6 +15,7 @@
 platforms += sgi-ip32
 platforms += sni
 platforms += vr41xx
+platforms += wrppmc
 
 # include the platform specific files
 include $(patsubst %, $(srctree)/arch/mips/%/Platform, $(platforms))