sound: add fk sound control
tcp: network speed tweak
Optimize kernel part 2: Optimize slub and disable gentle fair sleepers

Change-Id: I35090e7790a3086b852353ae927bf74bf6854411
exFAT support

Signed-off-by: flar2 <asegaert@gmail.com>
kernel: Allow exfat module load without hassle

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
defconfig: update
defconfig: enable kexec and hardboot