[SCSI] bnx2fc: Handle REC_TOV error code from firmware

Driver decides to initiate REC on REC_TOV timer pop. The firmware maintains the
REC timer and informs the driver as a firmware error message, which is an
unsolicited event to the driver. Driver also issues REC on other unsolicited
events from firmware that indicate data loss.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>