Remove unnecessary (void *)

When pointer casts are needed, cast directly to the correct type, instead
of going via void*.

Don't explicitly cast to void* if it would have been done implicitly.

Change-Id: I4093209200051c5eb62847d00a4b9c8567480068
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/1669
Tested-by: jenkins
Reviewed-by: Mathias Küster <kesmtp@freenet.de>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>

src/target/arm_semihosting.c

@@ -323,7 +323,7 @@ static int do_semihosting(struct target *target)
 			if (l < s)
 				result = -1;
 			else {
-				retval = target_write_buffer(target, a, s, (void *)arg);
+				retval = target_write_buffer(target, a, s, (uint8_t *)arg);
 				if (retval != ERROR_OK)
 					return retval;
 				result = 0;