Staging: ks7010: __packed instedad of __attribute__((packed))

Fix a issue found by  checkpatch.pl tool:

"WARNING: __packed is preferred over __attribute__((packed))".

Replace  __attribute__((packed)) with __packed.

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