GitLab

Split off the battery data lookup table interpolation into
batterydata-lib.c. This allows different BMS to share the batterydata
interpolation code.

Change-Id: I67c2ac422b0ba1e5eca11ffccfe7e112c2e65a3d
Signed-off-by: Xiaozhe Shi <xiaozhes@codeaurora.org>