Do not test ifunc on mips

This commit fixes mips build

Bug: http://b/28009632
Change-Id: I5c657b31947791aea4cc02a2fc4ede6d0ecde851
diff --git a/tests/dlfcn_test.cpp b/tests/dlfcn_test.cpp
index 1123163..19f9978 100644
--- a/tests/dlfcn_test.cpp
+++ b/tests/dlfcn_test.cpp
@@ -211,6 +211,8 @@
   dlclose(handle);
 }
 
+// mips doesn't support ifuncs
+#if !defined(__mips__)
 TEST(dlfcn, ifunc) {
   typedef const char* (*fn_ptr)();
 
@@ -254,6 +256,7 @@
   ASSERT_STREQ("true", is_ctor_called());
   dlclose(handle);
 }
+#endif
 
 TEST(dlfcn, dlopen_check_relocation_dt_needed_order) {
   // This is the structure of the test library and