lpfc 8.1.7 patches

This patch set updates the lpfc driver to revision 8.1.7, which includes the following changes:

- Use mod_timer instead of add_timer in lpfc_els_timeout_handler
- Standardize the driver on a single define for the maximum supported targets
- Fix memory leak and cleanup code related to per ring lookup array.
- Fixed infinite retry of REG_LOGIN mailbox failed due to MBXERR_RPI_FULL
- Issue DOWN_LINK prior to INIT_LINK to work around link failure issue
- Fix txcmplq related panics on heavy IO while downloading firmware
- Correct bogus nodev_tmo message on NPort that changes its NPort Id
- Consolidate dma buf cleanup into a separate function
- Fix panic in lpfc_sli_validate_fcp_iocb due to access of scsi_cmnd after returning it to the midlayer
- Adding new issue_reset sysfs attribute
- Remove depricated sysfs attribute board_online, as it's replaced by the new issue_reset attribute
- Correct the wait in attachment that delays for topology discovery
- Add lpfc_sli_flush_mbox_queue() function and use it in lpfc_offline() call to avoid deadlock on thread block.
- Misc Fixes:
- Fix some sparse warnings - casts of address space
- Fix handling of the adapter registration string. Each invocation was byteswapping, so every other adapter init attempt failed.
- Correct comments and default value for the lpfc_max_luns parameter
- Change version number to 8.1.7

-- james s