staging: bcm2835-camera: insert emty line after declaration

Missing empty line after variable declaration

Signed-off-by: Houssem KADI <kadi.houssem.eddine@gmail.com>
Link: https://lore.kernel.org/r/20200509180849.GA30426@houssem-MS-7808


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>