Staging: ks7010: add blank line after declaration

This patch fixes a coding style WARNING:
Missing a blank line after declaration, found by checkpatch.pl.
By adding a blank line after declaration of a variable.

Signed-off-by: Muraru Mihaela <mihaela.muraru21@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>