Fix: wrong clang path in Bazel toolchain (#699) (#700)

bazel/hello-world/hello-world-simd.cc

@@ -0,0 +1,10 @@
+#include <wasm_simd128.h>
+
+void multiply_arrays(int* out, int* in_a, int* in_b, int size) {
+  for (int i = 0; i < size; i += 4) {
+    v128_t a = wasm_v128_load(&in_a[i]);
+    v128_t b = wasm_v128_load(&in_b[i]);
+    v128_t prod = wasm_i32x4_mul(a, b);
+    wasm_v128_store(&out[i], prod);
+  }
+}