MIPS: Loongson: Migrate makefile to new Platform file

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
To: linux-mips <linux-mips@linux-mips.org>
Cc: Alexander Clouter <alex@digriz.org.uk>
Cc: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>,
Patchwork: https://patchwork.linux-mips.org/patch/1313/
Patchwork: https://patchwork.linux-mips.org/patch/1326/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/Kbuild.platforms b/arch/mips/Kbuild.platforms
index 681b2d4..9784c49 100644
--- a/arch/mips/Kbuild.platforms
+++ b/arch/mips/Kbuild.platforms
@@ -1,6 +1,7 @@
 # All platforms listed in alphabetic order
 
 platforms += ar7
+platforms += loongson
 
 # include the platform specific files
 include $(patsubst %, $(srctree)/arch/mips/%/Platform, $(platforms))