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

src/trusted/validator/x86/ncval_seg_sfi/ncval_seg_sfi.gyp

Index: src/trusted/validator/x86/ncval_seg_sfi/ncval_seg_sfi.gyp
diff --git a/src/trusted/validator/x86/ncval_seg_sfi/ncval_seg_sfi.gyp b/src/trusted/validator/x86/ncval_seg_sfi/ncval_seg_sfi.gyp
index ce72d749d1ca61697f7da15edab316c5c3238939..bbccdc9c896695ed5fd4c9928612e5797d4eb8c2 100644
--- a/src/trusted/validator/x86/ncval_seg_sfi/ncval_seg_sfi.gyp
+++ b/src/trusted/validator/x86/ncval_seg_sfi/ncval_seg_sfi.gyp
@@ -175,5 +175,8 @@
     [ 'target_arch=="arm"', {
       'targets': []
     }],
+    [ 'target_arch=="mipsel"', {
+      'targets': []
+    }],
   ],
 }