staging: ks7010: reduce length of comment string

Comment string is unnecessarily verbose. Checkpatch emits WARNING:
line over 80 characters.

Reduce comment string without loss of meaning.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>