Mobile: Rework how game keys are sent to Canvas.

Apparently, making Num(x) keys return their expected Canvas values
isn't intended behavior based on some DeValley games like Gun Fever.
Instead, movement keys like 2,4,6,8 should actually resutn Up,
Left, Right and Down game values.

Author: AShiningRay

src/org/recompile/mobile/Mobile.java

@@ -432,10 +432,10 @@ public static final int getGameAction(int keycode)
 				case NOKIAKB_NUM1: return Canvas.GAME_A; // L
 				case NOKIAKB_NUM3: return Canvas.GAME_B; // R
 				case NOKIAKB_NUM5: return Canvas.KEY_NUM5;
-				case NOKIAKB_NUM2: return Canvas.KEY_NUM2;
-				case NOKIAKB_NUM8: return Canvas.KEY_NUM8;
-				case NOKIAKB_NUM4: return Canvas.KEY_NUM4;
-				case NOKIAKB_NUM6: return Canvas.KEY_NUM6;
+				case NOKIAKB_NUM2: return Canvas.UP;
+				case NOKIAKB_NUM8: return Canvas.DOWN;
+				case NOKIAKB_NUM4: return Canvas.LEFT;
+				case NOKIAKB_NUM6: return Canvas.RIGHT;
 				case NOKIAKB_NUM0: return Canvas.KEY_NUM0;
 				case NOKIAKB_STAR: return Canvas.KEY_STAR;
 				case NOKIAKB_POUND: return Canvas.KEY_POUND;
@@ -471,15 +471,15 @@ public static final int getGameAction(int keycode)
 			case NOKIA_DOWN:  return Canvas.DOWN;
 			case NOKIA_LEFT:  return Canvas.LEFT;
 			case NOKIA_RIGHT: return Canvas.RIGHT;
-			case KEY_NUM2:    return Canvas.KEY_NUM2;
-			case KEY_NUM8:    return Canvas.KEY_NUM8;
-			case KEY_NUM4:    return Canvas.KEY_NUM4;
-			case KEY_NUM6:    return Canvas.KEY_NUM6;
-			case KEY_NUM9:    return Canvas.KEY_NUM9;
-			case KEY_NUM7:    return Canvas.KEY_NUM7;
+			case KEY_NUM2:    return Canvas.UP;
+			case KEY_NUM8:    return Canvas.DOWN;
+			case KEY_NUM4:    return Canvas.LEFT;
+			case KEY_NUM6:    return Canvas.RIGHT;
+			case KEY_NUM9:    return Canvas.GAME_D;
+			case KEY_NUM7:    return Canvas.GAME_C;
 			case KEY_NUM5:    return Canvas.KEY_NUM5;
-			case KEY_NUM1:    return Canvas.KEY_NUM1;
-			case KEY_NUM3:    return Canvas.KEY_NUM3;
+			case KEY_NUM1:    return Canvas.GAME_A;
+			case KEY_NUM3:    return Canvas.GAME_B;
 			case KEY_NUM0:    return Canvas.KEY_NUM0;
 			case KEY_STAR:    return Canvas.KEY_STAR;
 			case KEY_POUND:   return Canvas.KEY_POUND;