nxcodec: fix build warning

nxcodec_main.c:143:37: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 2 has type ‘uint32_t’ {aka ‘unsigned int’} [-Wformat=]
  143 |             printf("nxcodec size: %lux%lu\n",
      |                                   ~~^
      |                                     |
      |                                     long unsigned int
      |                                   %u
  144 |                    codec.output.format.fmt.pix.width,
      |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                               |
      |                                               uint32_t {aka unsigned int}
nxcodec_main.c:143:41: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 3 has type ‘uint32_t’ {aka ‘unsigned int’} [-Wformat=]
  143 |             printf("nxcodec size: %lux%lu\n",
      |                                       ~~^
      |                                         |
      |                                         long unsigned int
      |                                       %u
  144 |                    codec.output.format.fmt.pix.width,
  145 |                    codec.output.format.fmt.pix.height);
      |                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                               |
      |                                               uint32_t {aka unsigned int}

Signed-off-by: shizhenghui <shizhenghui@xiaomi.com>

system/nxcodec/nxcodec_main.c

@@ -140,7 +140,7 @@ int main(int argc, FAR char **argv)
                                 codec.capture.format.fmt.pix.width;
             codec.output.format.fmt.pix.height =
                                 codec.capture.format.fmt.pix.height;
-            printf("nxcodec size: %lux%lu\n",
+            printf("nxcodec size: %"PRIu32"x%"PRIu32"\n",
                    codec.output.format.fmt.pix.width,
                    codec.output.format.fmt.pix.height);