Block updates

https://android.googlesource.com/kernel/common/+/e3c78ca524d230bc145e902625e88c392a58ddf3
https://android.googlesource.com/kernel/common/+/274193224cdabd687d804a26e0150bb20f2dd52c
https://android.googlesource.com/kernel/common/+/f8fc877d3c1f10457d0d73d8540a0c51a1fa718a
https://android.googlesource.com/kernel/common/+/22f746e235a5cbee2a6ca9887b1be2aa7d31fe71

Changes committed:
modified:   block/blk-core.c
modified:   block/blk.h
modified:   block/elevator.c
modified:   fs/mpage.c
modified:   include/linux/blk_types.h
modified:   include/linux/elevator.h
ioctl support for sanitize in eMMC
https://android.googlesource.com/kernel/msm.git/+/73937f5face75e05ec2a72966d04f4e20aa18379

Changes committed:
modified:   block/blk-core.c
modified:   block/blk-lib.c
modified:   block/blk-merge.c
modified:   block/cfq-iosched.c
modified:   block/elevator.c
modified:   block/ioctl.c
modified:   fs/block_dev.c
modified:   include/linux/blk_types.h
modified:   include/linux/blkdev.h
modified:   include/linux/fs.h
modified:   kernel/trace/blktrace.c
Ooops from last commit

Changes committed:
modified:   include/linux/blk_types.h