gpujpeg_reader get info: set restart_interval=0

Set restart interval to zero for gpujpeg_reader_get_image_info() -
it is actually checked if not change(unless 0), so any other inital
value than zero and the actual DRI value will cause errors like:

```
GPUJPEG rev ef4fa04
[GPUJPEG] [Error] DRI marker can't redefine restart interval (8 to 4)!
This may be caused when more DRI markers are presented which is not supported!
```

This fixes the commit ef4fa04 from 2024-04-09.

src/gpujpeg_reader.c

@@ -1525,6 +1525,8 @@ gpujpeg_reader_get_image_info(uint8_t *image, size_t image_size, struct gpujpeg_
     enum gpujpeg_color_space header_color_space = GPUJPEG_NONE;
     uint8_t *image_end = image + image_size;
 
+    param->restart_interval = 0;
+
     // Check first SOI marker
     int marker_soi = gpujpeg_reader_read_marker(&image, image_end);
     if (marker_soi != GPUJPEG_MARKER_SOI) {