Staging: mt7621_dma: Prefer unsigned int over just unsigned

Replace 'unsigned' with 'unsigned int' to be specific with data type.
Issue found with checkpatch.pl
Signed-off-by: Bhanusree Pola <bhanusreemahesh@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/mt7621-dma/mtk-hsdma.c

@@ -191,7 +191,7 @@ static inline u32 mtk_hsdma_read(struct mtk_hsdam_engine *hsdma, u32 reg)
 }
 
 static inline void mtk_hsdma_write(struct mtk_hsdam_engine *hsdma,
-				   unsigned reg, u32 val)
+				   unsigned int reg, u32 val)
 {
 	writel(val, hsdma->base + reg);
 }