UI input map fixes

- Fix a longstanding bug that prevented binding several ORed buttons to any input belonging to a non-root device.
- Fix a visual glitch when assigning inputs to analog sequences.

src/frontend/mame/ui/inputmap.cpp

@@ -426,7 +426,7 @@ void menu_input::populate_and_sort(input_item_data *itemlist)
 			text = "(" + text + ")";
 
 		/* if we're polling this item, use some spaces with left/right arrows */
-		if (pollingref == item->ref)
+		if (pollingref == item->ref && pollingseq == item->seqtype)
 		{
 			subtext.assign("   ");
 			flags |= FLAG_LEFT_ARROW | FLAG_RIGHT_ARROW;

src/frontend/mame/ui/inputmap.h

@@ -66,7 +66,7 @@ protected:
 	input_item_data *   pollingitem;
 
 private:
-	uint16_t              last_sortorder;
+	uint32_t            last_sortorder;
 	bool                record_next;
 	input_seq           starting_seq;