mb/google/nissa/var/uldren: Enable Weida touchscreen

mb/google/nissa/var/uldren: Enable Weida touchscreen

Support Weida WDT8790A touchscreen.

BUG=b:297453122
BRANCH=firmware-brya-14505.B
TEST=touchscreen is workable and evtest shows WDHT2601
$evtest
No device specified, trying to scan all of /dev/input/event*
Available devices:
/dev/input/event0:      Lid Switch
/dev/input/event1:      Power Button
/dev/input/event10:     sof-cs42l42 HDMI/DP,pcm=2
/dev/input/event11:     sof-cs42l42 HDMI/DP,pcm=3
/dev/input/event12:     sof-cs42l42 HDMI/DP,pcm=4
/dev/input/event13:     sof-cs42l42 HDMI/DP,pcm=5
/dev/input/event2:      AT Translated Set 2 keyboard
/dev/input/event3:      cros_ec_buttons
/dev/input/event4:      Elan Touchpad
/dev/input/event5:      WDHT2601:00 2575:0921
/dev/input/event6:      WDHT2601:00 2575:0921 Stylus
/dev/input/event7:      WDHT2601:00 2575:0921 Stylus
/dev/input/event8:      DELL Dell USB Entry Keyboard
/dev/input/event9:      sof-cs42l42 Headset Jack

Change-Id: If9539afaf891c8352bc7fc8e548fd77ea57ea6ca
Signed-off-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77575
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Ian Feng <ian_feng@compal.corp-partner.google.com>
Reviewed-by: Derek Huang <derekhuang@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>