[MIPS] Add support to gyp files to build Native Client inside of Chromium

src/untrusted/nacl/nacl.gyp

Index: src/untrusted/nacl/nacl.gyp
diff --git a/src/untrusted/nacl/nacl.gyp b/src/untrusted/nacl/nacl.gyp
index c30499756fc3c1d8a871d8fe4a3967358269e7ae..6abf435292affd18ca55a958787f7e7bedfb8c43 100644
--- a/src/untrusted/nacl/nacl.gyp
+++ b/src/untrusted/nacl/nacl.gyp
@@ -134,8 +134,8 @@
         'nacl_lib_newlib',
       ],
       'conditions': [
-        # NOTE: We do not support glibc on arm yet.
-        ['target_arch!="arm"', {
+        # NOTE: We do not support glibc on arm and mips yet.
+        ['target_arch!="arm" and target_arch!="mipsel"', {
            'dependencies': [
              'nacl_lib_glibc'
            ]