FreeBSD compile fix

Robert Millan

src/joystick/bsd/SDL_sysjoystick.c makes the invalid assumption that
__FreeBSD_kernel__ implies presence of "ucr_data" struct member.  This
breaks recent versions of FreeBSD 10-CURRENT, FreeBSD 9-STABLE and
Debian GNU/kFreeBSD "wheezy/sid".

src/joystick/bsd/SDL_sysjoystick.c

@@ -149,7 +149,7 @@ static char *joydevnames[MAX_JOYS];
 static int report_alloc(struct report *, struct report_desc *, int);
 static void report_free(struct report *);
 
-#if defined(USBHID_UCR_DATA) || defined(__FreeBSD_kernel__)
+#if defined(USBHID_UCR_DATA)
 #define REP_BUF_DATA(rep) ((rep)->buf->ucr_data)
 #elif (defined(__FREEBSD__) && (__FreeBSD_kernel_version > 800063))
 #define REP_BUF_DATA(rep) ((rep)->buf->ugd_data)