Lenovo Thinkpad T14 Gen 2 touchpad support

Hi!

I have a Lenovo T14 Gen 2 which isn't yet whitelisted for the synaptics RMI 
driver it seems (as of 5.11.16):

psmouse serio1: synaptics: queried max coordinates: x [..5678], y [..4694]
psmouse serio1: synaptics: queried min coordinates: x [1266..], y [1162..]
psmouse serio1: synaptics: Your touchpad (PNP: LEN2072 PNP0f13) says it can 
support a different bus. If i2c-hid and hid-rmi are not used, you might want to 
try setting psmouse.synaptics_intertouch to 1 and report this to linux-
input@vger.kernel.org.
psmouse serio1: synaptics: Touchpad model: 1, fw: 10.32, id: 0x1e2a1, caps: 
0xf01ea3/0x940300/0x12e800/0x500000, board id: 3471, fw id: 3324237
psmouse serio1: synaptics: serio: Synaptics pass-through port at isa0060/
serio1/input0
input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/
input6

Works fine with psmouse.synaptics_intertouch=1:

psmouse serio1: synaptics: queried max coordinates: x [..5678], y [..4694]
psmouse serio1: synaptics: queried min coordinates: x [1266..], y [1162..]
psmouse serio1: synaptics: Trying to set up SMBus access
rmi4_f01 rmi4-00.fn01: found RMI device, manufacturer: Synaptics, product: 
TM3471-030, fw id: 3324237
input: Synaptics TM3471-030 as /devices/rmi4-00/input/input10

Grs,
Heinz