Add support for ROI decode on MI300 (#53)

* Add support for ROI decode on MI300

* Add ROI decode support for batched decoding

* clean up

* clean up

* Fix a typo and update sample's readme

[ROCm/rocjpeg commit: 7b321a86ed]

projects/rocjpeg/samples/jpegDecodeMultiThreads/README.md

@@ -23,5 +23,6 @@ make -j
                          -fmt   <[output format] - select rocJPEG output format for decoding, one of the [native, yuv, y, rgb, rgb_planar] [optional - default: native]>
                          -o     <[output path] - path to an output file or a path to a directory - write decoded images to a file or directory based on selected output format [optional]>
                          -d     <[device id] - specify the GPU device id for the desired device (use 0 for the first device, 1 for the second device, and so on) [optional - default: 0]>
+                         -crop  <[crop rectangle] - crop rectangle for output in a comma-separated format: left,top,right,bottom - [optional]>
                          -t     <[threads] - number of threads for parallel JPEG decoding [optional - default: 2]>
 ```