ramips: 5.15: add patch fixing compilation warning for hsdma-mt7621
Add patch fixing compilation warning for hsdma-mt7621:
drivers/staging/mt7621-dma/hsdma-mt7621.c: In function 'mtk_hsdma_probe':
drivers/staging/mt7621-dma/hsdma-mt7621.c:685:9: error: ignoring return value of 'device_reset' declared with attribute 'warn_unused_result' [-Werror=unused-result]
685 | device_reset(&pdev->dev);
| ^~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>