Add USB PID 0x2020 (NB-2020-U) to the nb1010 driver's id_table.
The NB-2020-U is an embedded variant of the NB-1010-U using an
identical sensor die (confirmed by independent teardown reports from
System Plus Consulting/Yole Group). USB endpoint layout, command
protocol and image format are identical between both devices.
Tested on a Fujitsu notebook with integrated NB-2020-U reader
(USB ID 298d:2020): device enumeration, finger detection polling
and image capture all work correctly with the existing nb1010
driver code.
Signed-off-by: Sebastian van de Meer <kernel-error@kernel-error.com>
