MIPS: IP27: Migrate to new Platform file

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/Kbuild.platforms b/arch/mips/Kbuild.platforms
index 68794bb..77e48b9 100644
--- a/arch/mips/Kbuild.platforms
+++ b/arch/mips/Kbuild.platforms
@@ -4,6 +4,7 @@
 platforms += ar7
 platforms += loongson
 platforms += mipssim
+platforms += sgi-ip27
 
 # include the platform specific files
 include $(patsubst %, $(srctree)/arch/mips/%/Platform, $(platforms))