Add SioPlus and Fiops iosheds
Fix Deconfig
Fix Zen Bug

Changes committed:
modified:   arch/arm/configs/vigor_aosp_defconfig
modified:   block/Kconfig.iosched
modified:   block/Makefile
new file:   block/fiops-iosched.c
new file:   block/sioplus-iosched.c
modified:   block/zen-iosched.c
modified:   include/linux/elevator.h