powerHAL: remove touchboost error log spam :p

Change-Id: Id131799a0e24b7cf9c7f102a37b8b5df81517a52
Signed-off-by: faux123 <reioux@gmail.com>
power: simplify PowerHAL operations using sysfs_write instead of posix write()

Change-Id: I3c3ac86291071c2107ab5b09c3d754a33601cdca
Signed-off-by: faux123 <reioux@gmail.com>