Print out bytes after we read them

sw/test/pcie_dma_test.c

@@ -89,7 +89,7 @@ int main(void)
 
 
     printf("Allocating 1024 bytes as destination\n");
-    uint32_t* dst = (uint32_t*)malloc(1024);
+    char* dst = (char*)malloc(1024);
     printf("Virtual address: %p\n", dst);
     uintptr_t dst_phys;
     virt_to_phys_user(&dst_phys, (uintptr_t)dst);
@@ -136,6 +136,7 @@ int main(void)
     printf("%d\n", pcie_base[12]);
     printf("\n\n");
 
-    printf("%x\n", dst[0]);
+    printf("strlen(dst)=%d\n", strlen(dst));
+    printf("%s\n", dst);
 
 }