fix unusable touch by adding touch identifier into touchPosition

nx/include/switch/services/hid.h

@@ -325,6 +325,7 @@ typedef enum
 
 typedef struct touchPosition
 {
+    u32 id;
     u32 px;
     u32 py;
     u32 dx;

nx/source/services/hid.c

@@ -472,6 +472,7 @@ void hidTouchRead(touchPosition *pos, u32 point_id) {
             return;
         }
 
+        pos->id = g_touchEntry.touches[point_id].touchIndex;
         pos->px = g_touchEntry.touches[point_id].x;
         pos->py = g_touchEntry.touches[point_id].y;
         pos->dx = g_touchEntry.touches[point_id].diameterX;