[MIPS64] Temporary placeholder build, to allow other projects to build

This needs to be reverted once proper mips64 port is available

Change-Id: I64d1c7ebbdb4d8b9cc5306830954df351e67d813
diff --git a/runtime/Android.mk b/runtime/Android.mk
index bab250c..d735051 100644
--- a/runtime/Android.mk
+++ b/runtime/Android.mk
@@ -235,7 +235,11 @@
 ifeq ($(TARGET_ARCH),arm64)
 $(info TODOArm64: $(LOCAL_PATH)/Android.mk Add Arm64 specific runtime files)
 else
+ifeq ($(TARGET_ARCH),mips64)
+$(info TODOMips64: $(LOCAL_PATH)/Android.mk Add mips64 specific runtime files)
+else
 $(error unsupported TARGET_ARCH=$(TARGET_ARCH))
+endif # TARGET_ARCH != mips64
 endif # TARGET_ARCH != arm64
 endif # TARGET_ARCH != mips
 endif # TARGET_ARCH != x86_64