V4L/DVB (5505): Fix Kernel Bugzilla #8301: spinlock fix for flexcop-pci

If you modprobe the b2c2-flexcop-pci module you got a hardlock of your system.
This is due the usage of spin_lock before spin_lock_init is called.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>