fix(test): minor bug fix

sdk/software/examples/dma/main.c

@@ -89,7 +89,7 @@ int main(int argc, char** argv)
     for (int i = 0; i < data_len; i++) {
         uint32_t val = uncached_dst[i];
         printf("%d: %d\n", i, val);
-        if (val != i) {
+        if (val != i * i) {
             err++;
         }
     }