staging: ks7010: remove line continuations in quoted strings

Checkpatch emits WARNING: Avoid line continuations in quoted strings.

Remove line continuations - split strings using quotes.

Signed-off-by: Ilia Sergachev <ilia.sergachev@unibas.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>