scsi: core: Move the eh_deadline module parameter definition

scsi: core: Move the eh_deadline module parameter definition

The eh_deadline definition occurs in the middle of the code for
releasing a host. Avoid splitting the host release code by moving the
definition of the eh_deadline parameter to the top of the hosts.c source
file.

Signed-off-by: Bart Van Assche <[email protected]>
Reviewed-by: Hannes Reinecke <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Hannes Reinecke <[email protected]>
Cc: Johannes Thumshirn <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>