Input: synaptics - switch T470s to RMI4 by default

This supports RMI4 and everything seems to work, including the touchpad
buttons. So, let's enable this by default.

Signed-off-by: Lyude Paul <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>

Author: Lyude

drivers/input/mouse/synaptics.c

@@ -169,6 +169,7 @@ static const char * const smbus_pnp_ids[] = {
 	"LEN004a", /* W541 */
 	"LEN005b", /* P50 */
 	"LEN005e", /* T560 */
+	"LEN006c", /* T470s */
 	"LEN0071", /* T480 */
 	"LEN0072", /* X1 Carbon Gen 5 (2017) - Elan/ALPS trackpoint */
 	"LEN0073", /* X1 Carbon G5 (Elantech) */