Add CM 11.0 stock ramdisk

Change-Id: Ia373bb695587056501675a165bfbbf09af202e5e
Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>
ghost: Improve bootup speed

* Switch to NOOP while booting for FIFO I/O scheduling
* Switch to ROW after boot for better UI performance
* Increase readahead value for ROW to be more effective

Change-Id: I8f53b34ab99281af860e74471574f24568edbe32
Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>