Add Wasm tests to skip list for big-endian.

test/unittests/unittests.status

Index: test/unittests/unittests.status
diff --git a/test/unittests/unittests.status b/test/unittests/unittests.status
index d439913ccf68a2b308920724a0651786bb0464da..b23fc54c57cb6774e8ee8dd398fb37f377bafa54 100644
--- a/test/unittests/unittests.status
+++ b/test/unittests/unittests.status
@@ -3,4 +3,11 @@
 # found in the LICENSE file.
 
 [
+['byteorder == big', {
+  # TODO(mips-team): Fix Wasm for big-endian.
+  'WasmModuleVerifyTest*': [SKIP],
+  'WasmFunctionVerifyTest*': [SKIP],
+  'WasmDecoderTest.TableSwitch*': [SKIP],
+}],  # 'byteorder == big'
+
 ]