FS#13698 - Rockblox don't accept control commands

FiiO M3K - you have to hold up or down before the pieces will rotate

AFAICT the scrollpad on the m3k is being presented as a scrollwheel
and it waits for 3 events before enabling rotation.

This behavior is blocking the user presses till you get a repeat event
Fix:
 Enable the scrollwheel at start for the m3k (and m3k linux)

Change-Id: Ic36048dae6f691e9085ab37ffbf67be07c2035ac

apps/plugins/rockblox.c

@@ -433,6 +433,7 @@
 #define ROCKBLOX_RIGHT          BUTTON_NEXT
 #define ROCKBLOX_DROP           (BUTTON_PLAY|BUTTON_REL)
 #define ROCKBLOX_RESTART        (BUTTON_PLAY|BUTTON_REPEAT)
+#define ROCKBLOX_SCROLL_ENABLED 1 //Untested Probably needed
 
 #elif (CONFIG_KEYPAD == IHIFI_770_PAD) || (CONFIG_KEYPAD == IHIFI_800_PAD)
 
@@ -465,6 +466,7 @@
 #define ROCKBLOX_RIGHT          BUTTON_RIGHT
 #define ROCKBLOX_DROP           BUTTON_PLAY
 #define ROCKBLOX_RESTART        BUTTON_BACK
+#define ROCKBLOX_SCROLL_ENABLED 1
 
 #elif CONFIG_KEYPAD == SHANLING_Q1_PAD
 /* use touchscreen */
@@ -858,8 +860,13 @@ static void new_block(void);
 
 #ifdef HAVE_SCROLLWHEEL
 int wheel_events = 0, last_wheel_event = 0;
+#ifdef ROCKBLOX_SCROLL_ENABLED
+    /* Bugfix M3K has a scrollpad that is also up down buttons */
+    bool wheel_enabled = true;
+#else
     bool wheel_enabled = false;
 #endif
+#endif
 
 static const short scoring[4] = {  /* scoring for each number of lines */
 #if BOARD_HEIGHT == 20