MAINTAINERS: rectify entry for CHIPONE ICN8318 I2C TOUCHSCREEN DRIVER

MAINTAINERS: rectify entry for CHIPONE ICN8318 I2C TOUCHSCREEN DRIVER

Commit 97b872636036 ("dt-bindings: input: Convert ChipOne ICN8318
binding to a schema") converts chipone_icn8318.txt to chipone,icn8318.yaml,
but missed to adjust its reference in MAINTAINERS.

Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about
a broken reference.

Repair this file reference in CHIPONE ICN8318 I2C TOUCHSCREEN DRIVER.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20211005075451.29691-12-lukas.bulwahn@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>