[riscv64][sim] Increase the simulator's stack limit margin

Port d36f596e

Change-Id: I13c9d23bb06841e1f6cbb07c68968fb3cc9eb01a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3573784
Auto-Submit: Yahan Lu <yahan@iscas.ac.cn>
Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Commit-Queue: ji qiu <qiuji@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#79836}

src/execution/riscv64/simulator-riscv64.cc

@@ -2718,9 +2718,9 @@ uintptr_t Simulator::StackLimit(uintptr_t c_limit) const {
     return reinterpret_cast<uintptr_t>(get_sp());
   }
 
-  // Otherwise the limit is the JS stack. Leave a safety margin of 1024 bytes
+  // Otherwise the limit is the JS stack. Leave a safety margin of 4 KiB
   // to prevent overrunning the stack when pushing values.
-  return reinterpret_cast<uintptr_t>(stack_) + 1024;
+  return reinterpret_cast<uintptr_t>(stack_) + 4 * KB;
 }
 
 // Unsupported instructions use Format to print an error and stop execution.