atm: he: use mdelay instead of large udelay constants

ARM cannot handle udelay for more than 2 miliseconds, and
it is rather bad style to block the cpu for 16ms anyway,
so let's use msleep instead.

Signed-off-by: Arnd Bergmann <[e-mail]>
Cc: Chas Williams <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Signed-off-by: David S. Miller <[e-mail]>

drivers/atm/he.c

···
 	he_writel(he_dev, 0x0, RESET_CNTL);
 	he_writel(he_dev, 0xff, RESET_CNTL);
 
-	udelay(16*1000);	/* 16 ms */
+	msleep(16);	/* 16 ms */
 	status = he_readl(he_dev, RESET_CNTL);
 	if ((status & BOARD_RST_STATUS) == 0) {
 		hprintk("reset failed\n");