include: batterydata-interface: Add snapshot of the batterydata files

Add snapshot of the batterydata-interface files from msm-3.10, this
is required for qpnp-vmbms module.
(msm-3.10 commit - 7704c94d47f8ed7cc81e487ab9d576ef52e0f1e5)

Change-Id: I322774879dec5856443c90280f7eb8b1b7f07798
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>