popn: add io emulation for more lights and coin (#637)

## Link to GitHub Issue or related Pull Request, if one exists
#618 

## Description of change
Wire up coin and more lights to bi3a_hook.

## Testing
Tested on U region

src/spice2x/games/popn/bi3a_hook.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#if SPICE64
+#if SPICE64 && !SPICE_XP
 
 namespace games::popn {
     void bi3a_hook_init();