[Bug 240485] ig4: Add Cannon Lake LP and H I2C Controller IDs

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240485

--- Comment #8 from Vladimir Kondratyev <wulf at freebsd.org> ---
(In reply to Neel Chauhan from comment #7)
> The touchpad does not work with this patch.
That is strange. I see no attempts to read HID descriptor by your I2C device in
dmesg. Such attempts should look like:
iichid0: HID command I2C_HID_CMD_DESCR at 0xXX

Do you observe such a lines in dmesg? They precedes first communication with
HID device through I2C so they do not depend on state of the ig4 driver.

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