Add ili9882t dt-bindings and timing

Changes in v2:
- PATCH 1/2: fix ran make dt_binding_check warnings/errors.
- PATCH 1/2: remove oneOf,just enum.
- Link to v1: https://lore.kernel.org/all/20230602140948.2138668-1-yangcong5@huaqin.corp-partner.google.com/

Cong Yang (2):
  dt-bindings: input: touchscreen: Add ilitek 9882T touchscreen chip
  HID: i2c-hid: elan: Add ili9882t timing

 .../bindings/input/elan,ekth6915.yaml         | 23 ++++++++++++++++---
 drivers/hid/i2c-hid/i2c-hid-of-elan.c         | 20 ++++++++++++----
 2 files changed, 36 insertions(+), 7 deletions(-)

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2.25.1