block: Add TripnDroid IOSCHED

Signed-off-by: Lnes-F <tnoah12@gmail.com>
aroma: Add TripnDroid IOSCHED option and update build info

Signed-off-by: Lens-F <tnoah12@gmail.com>
build: switch back to arm-cortex_a15-linux-gnueabihf-linaro_4.9.1-2014.04

Signed-off-by: Lens-F <tnoah12@gmail.com>
Makefile: Add more optimization flags

Signed-off-by: Lens-F <tnoah12@gmail.com>