ALSA: asihpi: Use DIV_ROUND_UP() instead of open-coding it

Use DIV_ROUND_UP() instead of open-coding it. This documents intent
and makes it more clear what is going on for the casual reviewer.

Generated using the following the Coccinelle semantic patch.

// <smpl>
@@
expression x, y;
@@
-(((x) + (y) - 1) / (y))
+DIV_ROUND_UP(x, y)
// </smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20201223172229.781-3-lars@metafoo.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/asihpi/hpidebug.c

@@ -52,7 +52,7 @@ void hpi_debug_data(u16 *pdata, u32 len)
 	int lines;
 	int cols = 8;
 
-	lines = (len + cols - 1) / cols;
+	lines = DIV_ROUND_UP(len, cols);
 	if (lines > 8)
 		lines = 8;