ion: fix missing header export

Change-Id: Ibe5de261af055c447695a789efa07214e03e5d69
lc898300: implement sysfs interface for vibrator intensity

/sys/devices/i2c-12/12-0049/intensity

Change-Id: Ic85e234df06d779cc2f1729dea41c978c53b3fda
Merge branch 'cm-10.1' of https://github.com/CyanogenMod/android_kernel_sony_msm8x60 into jb-mr1