[SCSI] qla2xxx: Cleanup FCP-command-status processing debug statements.

Migrate to a consistent set of debug entries during status-IOCB
handling:

* group CS_TIMEOUT handling with CS_PORT_UNAVAILABLE and the like
  (more regrouping of common behaviour).

* drop CS_DATA_OVERRUN handling as it now falls into the
  'default' case (still returns DID_ERROR).

* consolidate CS_RESET and CS_ABORTED handling, as we the only
  functional difference was a printk() (still returns DID_RESET).

* dropped all the earlier inconsistent [qla_]printk()s sprinkled
  throught the needlessly large case-statement.  Failure case
  I/Os are now logged with a 'standard' format:

	<command failure details>
	<command generic details>

  so, for example a dropped-frame is logged as:

	qla2xxx 0000:13:00.0: scsi(16:0:0) Dropped frame(s) detected (4000 of 4000 bytes).
	qla2xxx 0000:13:00.0: scsi(16:0:0) FCP command status: 0x15-0x18 (70018) \
    oxid=78 ser=76 cdb=280000 len=4000 rsp_info=0 resid=0 fw_resid=4000

  which should now convey all relevant information.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

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