[media] atompisp: HAS_BL is never defined so lose it

Kill off the HAS_BL define and the code and includes it brackets. We never
define HAS_BL or use that functionality.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>