Char: rocket, switch long delay to sleep

Don't busy wait for whole 1s when registering some rocket modems. Sleep
instead since we are not in atomic.

Signed-off-by: Jiri Slaby <[e-mail]>
Cc: Alan Cox <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/char/rocket.c

···
 		num_chan = ports_per_aiop;
 		for (chan = 0; chan < num_chan; chan++)
 			sPCIModemReset(ctlp, chan, 1);
-		mdelay(500);
+		msleep(500);
 		for (chan = 0; chan < num_chan; chan++)
 			sPCIModemReset(ctlp, chan, 0);
-		mdelay(500);
+		msleep(500);
 		rmSpeakerReset(ctlp, rocketModel[i].model);
 	}
 	return (1);
···
 		total_num_chan = num_chan;
 		for (chan = 0; chan < num_chan; chan++)
 			sModemReset(ctlp, chan, 1);
-		mdelay(500);
+		msleep(500);
 		for (chan = 0; chan < num_chan; chan++)
 			sModemReset(ctlp, chan, 0);
-		mdelay(500);
+		msleep(500);
 		strcpy(rocketModel[i].modelString, "RocketModem ISA");
 	} else {
 		strcpy(rocketModel[i].modelString, "RocketPort ISA");