mtip32xx: convert to batch completion

mtip32xx: convert to batch completion

[asamymuthupa@micron.com:
	* changes for conversion to bio batch completion from Kent
	* fix to apply the above changes cleanly on latest mtip32xx code
	* batch bio completion changes in
		* mtip_command_cleanup()
		* mtip_timeout_function()
		* mtip_handle_tfe()]

Signed-off-by: Kent Overstreet <koverstreet@google.com>
Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Cc: Zach Brown <zab@redhat.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Asai Thambi S P <asamymuthupa@micron.com>
Cc: Selvan Mani <smani@micron.com>
Cc: Sam Bradshaw <sbradshaw@micron.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>