deps: V8: cherry-pick cf1bce40a5ef

Original commit message:

    [wasm] Fix S128Const on big endian

    Since http://crrev.com/c/2944437 globals are no longer little endian
    enforced.

    S128Const handling in the initializer needs to take this into account
    and byte reverse values which are hard coded in little endian order.

    This is currently causing failures on Node.js upstream:
    #59034 (comment)

    Change-Id: Ifcc9ade93ee51565ab19b16e9dadf0ff5752f7a6
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/7704213
    Commit-Queue: Milad Farazmand <mfarazma@ibm.com>
    Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
    Cr-Commit-Position: refs/heads/main@{#106082}

Refs: v8/v8@cf1bce4
Refs: v8/v8@cf1bce4
PR-URL: #61898
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
(cherry picked from commit cc5a331)

Author: richardlau

common.gypi

@@ -38,7 +38,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.11',
+    'v8_embedder_string': '-node.12',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/src/wasm/constant-expression-interface.cc

@@ -40,7 +40,17 @@ void ConstantExpressionInterface::S128Const(FullDecoder* decoder,
                                             const Simd128Immediate& imm,
                                             Value* result) {
   if (!generate_value()) return;
+#if V8_TARGET_BIG_ENDIAN
+  // Globals are not little endian enforced, they use native byte order and we
+  // need to reverse the bytes on big endian platforms.
+  uint8_t value[kSimd128Size];
+  for (int i = 0; i < kSimd128Size; i++) {
+    value[i] = imm.value[kSimd128Size - 1 - i];
+  }
+  result->runtime_value = WasmValue(value, kWasmS128);
+#else
   result->runtime_value = WasmValue(imm.value, kWasmS128);
+#endif
 }
 
 void ConstantExpressionInterface::UnOp(FullDecoder* decoder, WasmOpcode opcode,