dmaengine: dmatest: Remove spaces before tabs

Scripts/checkpath.pl says "please, no space before tabs".
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/d863916120d043e3f9dd2f2670238c34f68f7d5f.1654702886.git.geert+renesas@glider.beSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/dma/dmatest.c

@@ -579,10 +579,10 @@ static int dmatest_func(void *data)
 	unsigned int		total_tests = 0;
 	dma_cookie_t		cookie;
 	enum dma_status		status;
-	enum dma_ctrl_flags 	flags;
+	enum dma_ctrl_flags	flags;
 	u8			*pq_coefs = NULL;
 	int			ret;
-	unsigned int 		buf_size;
+	unsigned int		buf_size;
 	struct dmatest_data	*src;
 	struct dmatest_data	*dst;
 	int			i;