tty/vt: consolemap: make p1 increment less confusing in con_get_unimap()

p2 is already incremented like this few lines below, so do the same for
p1. This makes the code easier to follow.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220607104946.18710-15-jslaby@suse.czSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/vt/consolemap.c

@@ -793,8 +793,8 @@ int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct,
 		if (!p1)
 			continue;
 
-		for (j = 0; j < UNI_DIR_ROWS; j++) {
-			p2 = *(p1++);
+		for (j = 0; j < UNI_DIR_ROWS; j++, p1++) {
+			p2 = *p1;
 			if (!p2)
 				continue;