[arm64] Re-enable wasm tests.

Re-enable a couple of WebAssembly tests previously disabled by mistake.

Change-Id: I315b991bc1bb2a22aa5238e85e477704e3dc94df
Bug: 
Reviewed-on: https://chromium-review.googlesource.com/543123Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Martyn Capewell <martyn.capewell@arm.com>
Cr-Commit-Position: refs/heads/master@{#46132}

test/cctest/wasm/test-run-wasm-simd.cc

@@ -1597,7 +1597,7 @@ void RunBinaryLaneOpTest(
 #endif  // V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_MIPS ||
         // V8_TARGET_ARCH_MIPS64
 
-#if V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_X64
+#if V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_ARM64 || V8_TARGET_ARCH_X64
 WASM_SIMD_TEST(I32x4AddHoriz) {
   RunBinaryLaneOpTest<int32_t>(kExprI32x4AddHoriz, {{1, 5, 9, 13}});
 }
@@ -1614,7 +1614,8 @@ WASM_SIMD_TEST(F32x4AddHoriz) {
 }
 #endif  // V8_TARGET_ARCH_ARM
 
-#if V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64
+#if V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_ARM64 || V8_TARGET_ARCH_MIPS || \
+    V8_TARGET_ARCH_MIPS64
 // Test some regular shuffles that may have special handling on some targets.
 // Test a normal and unary versions (where second operand isn't used).
 WASM_SIMD_TEST(S32x4ZipLeft) {