Fixed haptic subsystem on linux 2.6.28 by lowering the EV_IsJoystick check...

Fixed haptic subsystem on linux 2.6.28 by lowering the EV_IsJoystick check (seems like some stuff was changed).  Shouldn't break anything with earlier versions.  Might need to be more robust if false positives show up.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%403545

src/joystick/linux/SDL_sysjoystick.c

@@ -377,11 +377,11 @@ EV_IsJoystick(int fd)
         (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) < 0)) {
         return (0);
     }
+
     if (!(test_bit(EV_KEY, evbit) && test_bit(EV_ABS, evbit) &&
-          test_bit(ABS_X, absbit) && test_bit(ABS_Y, absbit) &&
-          (test_bit(BTN_TRIGGER, keybit) || test_bit(BTN_A, keybit)
-           || test_bit(BTN_1, keybit))))
+          test_bit(ABS_X, absbit) && test_bit(ABS_Y, absbit))) {
         return 0;
+    }
     return (1);
 }