[backend][loong64] Fix careless grammatical error

Change-Id: Ibbe1882f043dd58ccea051e120a88bc4df1b9095
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3123653
Commit-Queue: Yu Yin <xwafish@gmail.com>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Auto-Submit: Yu Yin <xwafish@gmail.com>
Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#76521}

src/compiler/backend/loong64/instruction-selector-loong64.cc

@@ -1357,7 +1357,7 @@ void InstructionSelector::VisitBitcastWord32ToWord64(Node* node) {
 void InstructionSelector::VisitChangeInt32ToInt64(Node* node) {
 #ifdef USE_SIMULATOR
   Node* value = node->InputAt(0);
-  if ((value->opcode() == IrOpcode::kLoad || ||
+  if ((value->opcode() == IrOpcode::kLoad ||
        value->opcode() == IrOpcode::kLoadImmutable) &&
       CanCover(node, value)) {
     // Generate sign-extending load.