be2iscsi: Logging mechanism for the driver.

be2iscsi: Logging mechanism for the driver.

 Log level mechanism for different events enabled. These
 log levels can be set at driver load time/run time. The
 log level is set for each Scsi_host.

 Fixed few multi-line print warning to get over the new checkpatch.pl
 warnings on multi-line strings.

 Patch Submitted to upstream kernel

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>