conf: add Lenovo T450s and W451 to rules

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

conf/71-synaptics.rules

@@ -7,4 +7,14 @@ KERNELS=="serio1", \
     ATTRS{firmware_id}=="*LEN0048*", \
     ENV{ID_INPUT.tags}="has_trackpoint_buttons"
 
+# Lenovo W451
+KERNELS=="serio1", \
+    ATTRS{firmware_id}=="*LEN004a*", \
+    ENV{ID_INPUT.tags}="has_trackpoint_buttons"
+
+# Lenovo T450s
+KERNELS=="serio1", \
+    ATTRS{firmware_id}=="*LEN200f*", \
+    ENV{ID_INPUT.tags}="has_trackpoint_buttons"
+
 LABEL="touchpad_end"