input: bump to ints for deviceids - XI2 requires 16-bit deviceids.

Note: ABI break, but ABI_XINPUT_VERSION has NOT been bumped. Recompile input
drivers.

Revert "Xi: return BadImplementation for deviceids 256 and above"
This reverts commit 2b459f44f3.

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

dix/devices.c

@@ -1050,11 +1050,11 @@ dixLookupDevice(DeviceIntPtr *pDev, int id, ClientPtr client, Mask access_mode)
     *pDev = NULL;
 
     for (dev=inputInfo.devices; dev; dev=dev->next) {
-        if (dev->id == (CARD8)id)
+        if (dev->id == id)
             goto found;
     }
     for (dev=inputInfo.off_devices; dev; dev=dev->next) {
-        if (dev->id == (CARD8)id)
+        if (dev->id == id)
 	    goto found;
     }
     return BadDevice;