MFC r299666 - r299672

MFC r299666 - r299672

r299666: Takes care of any firmware command timeout scenarios by initiating OCR.
r299667: Similar to RAID map for Logical Drives, now JBOD map has been introduced
r299668: This patch implements driver support for 1MB IO size.
r299669: Implemented interrupt Config Hook in mrsas(4) to defer some of the tasks, like:
registering AEN, creating cdev.
r299670: Added support for Avago Intruder controller.
r299671: bugs fixed as part of this patch in kdump and some NULL pointer dereference
r299672: Version update patch.

Sponsored by:   AVAGO Technologies/ Broadcom Limited

git-svn-id: svn://svn.freebsd.org/base/stable/10@300736 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f