MIPS[64]: Skip LiftOff tests on big endian

MIPS[64] big endian doesn't have LiftOff implementation yet.
This CL skips offending tests.

Change-Id: I75797f2f234bbcafc535f3ff97670acabc32e216
Reviewed-on: https://chromium-review.googlesource.com/951486Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
Cr-Commit-Position: refs/heads/master@{#51782}

test/cctest/cctest.status

@@ -302,6 +302,13 @@
   'test-api/Threading6': [SKIP],
 }],  # 'arch == mips'
 
+##############################################################################
+['arch == mips or arch == mips64', {
+   # TODO(mips-team): Implement LiftOff on big-endian
+   'test-run-wasm/RunWasmLiftoff*': [SKIP],
+   'test-run-wasm-64/RunWasmLiftoff*': [SKIP],
+}],  # 'arch == mips or arch == mips64'
+
 ##############################################################################
 ['arch == mips64el or arch == mips64', {
   # BUG(v8:3154).