Add some ifdefs missing from XINPUT ABI 12

These flags are not used in the newer servers anymore. Define them locally,
remove the defines once we stop supporting server 1.9.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

src/synaptics.c

@@ -80,6 +80,12 @@
 #include <ptrveloc.h>
 #endif
 
+#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 12
+/* removed from server, purge when dropping support for server 1.10 */
+#define XI86_CONFIGURED         0x02
+#define XI86_SEND_DRAG_EVENTS   0x08
+#endif
+
 typedef enum {
     NO_EDGE = 0,
     BOTTOM_EDGE = 1,