ARM: dts: msm: Add BCL sensors for pm855b

Add BCL sensors like ibat, vbat and soc for pm855b. These sensors will be
used by thermal framework to monitor and mitigate for over current or
lower battery voltage.

Change-Id: Id4943bb580f2ddfa43b498023260b443640c116b
Signed-off-by: Ram Chandrasekar <rkumbako@codeaurora.org>