Input: i8042 - fix typos in comments

This trivial patch fixes two spelling typos in i8042.c:

- 'i8042_unlock_ship()' to 'i8042_unlock_chip()'
- 'i8042_controller init' to 'i8042_controller_init'

Signed-off-by: Tyson Moore <tyson@tyson.me>
Link: https://lore.kernel.org/r/20210612060753.28968-1-tyson@tyson.me


Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>