Update Android.bp to match Android.mk

Change-Id: I6b71d8ee91c550e2d37c88ce2ca088964639d433
diff --git a/libc/Android.bp b/libc/Android.bp
index 9c521d1..5c79bb7 100644
--- a/libc/Android.bp
+++ b/libc/Android.bp
@@ -70,16 +70,6 @@
     cppflags: [],
     include_dirs: ["external/jemalloc/include"],
 
-    arch: {
-        // b/25291096, Clang/llvm compiled libc.so for mips/mips64 failed to boot.
-        mips: {
-            clang: false,
-        },
-        mips64: {
-            clang: false,
-        },
-    },
-
     stl: "none",
     system_shared_libs: [],
     sanitize: {
@@ -1305,6 +1295,7 @@
         "bionic/lockf.cpp",
         "bionic/lstat.cpp",
         "bionic/malloc_info.cpp",
+        "bionic/mblen.cpp",
         "bionic/mbrtoc16.cpp",
         "bionic/mbrtoc32.cpp",
         "bionic/mbstate.cpp",