fs: revert fsync back to stock
fs: update fsync control 0.4

Moved to kobjects.
abb-charger: revert driver back to stock
abb-charger: update charger control

Notes: Samsung has modified this driver.
abb-codec: revert audio module back to stock
abb-codec: ABBamp audio v2.0b

Audio control module for ST-Ericsson AB850x codec

Credit:
Aditya Patange (Adi_Pat@xda)