[test][wasm] Skip relaxed SIMD tests on arm hardware

Some of the relaxed SIMD instructions produce different values than the
expected ones. Skip the test case for now.

Bug: 427134596
Change-Id: Ic4121c4b502cc50b84e54b9cc93e71b81f2b05c1
Reviewed-on: https://chrome-internal-review.googlesource.com/c/v8/fuzzilli/+/8469256
Commit-Queue: Carl Smith <cffsmith@google.com>
Auto-Submit: Matthias Liedtke <mliedtke@google.com>
Reviewed-by: Carl Smith <cffsmith@google.com>

Author: Liedtke

Tests/FuzzilliTests/WasmTests.swift

@@ -1769,6 +1769,11 @@ class WasmFoundationTests: XCTestCase {
     }
 
     func testWasmSimd128() throws {
+        #if arch(arm64)
+            // TODO(mdanylo): Investigate and adapt the expectations if behavior is correct.
+            throw XCTSkip("Relaxed SIMD tests currently failing on arm64, skipping")
+        #endif
+
         let runner = try GetJavaScriptExecutorOrSkipTest()
         let liveTestConfig = Configuration(logLevel: .error, enableInspection: true)
         let fuzzer = makeMockFuzzer(config: liveTestConfig, environment: JavaScriptEnvironment())