defconfig: cleanup
Asynchronous Fsync: initial extraction of Async Fsync from HTC

Signed-off-by: Paul Reioux <reioux@gmail.com>
def: async fsync
gpu: add 389mhz step
gpu: make 200MHz step to default
LCD_KCAL: Color Control driver for Nexus 5

thx savoca
def: LCD_KCAL
def: tcp_cong
build: new