Enable asm-wasm mjsunit tests (skip on arm).

Landing this again, excluding arm as it fail and arm64
out of caution that other wasm arm64 tests are also disabled.

BUG= https://code.google.com/p/v8/issues/detail?id=4203
TEST=mjsunit/asm-wasm
R=titzer@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/1694493002

Cr-Commit-Position: refs/heads/master@{#33910}

test/mjsunit/mjsunit.status

@@ -289,9 +289,7 @@
 
   # TODO(titzer): correct WASM adapter frame alignment on arm64
   'wasm/*': [PASS, ['arch == arm64', SKIP]],
-
-  # TODO(titzer): SSE 4.1 required for asm-wasm test (floor).
-  'wasm/asm-wasm': [SKIP],
+  'wasm/asm-wasm': [PASS, ['arch == arm or arch == arm64', SKIP]],
 
   # case-insensitive unicode regexp relies on case mapping provided by ICU.
   'harmony/unicode-regexp-ignore-case': [PASS, ['no_i18n == True', FAIL]],