ARM: dts: msm: Add BCL device node for MSM8939

Add the battery current limiting (BCL) device node in device tree to
enable the BCL driver in kernel.

Change-Id: Ic63ede570a72516082aefa2ef4c8119310897ddf
Signed-off-by: Manaf Meethalavalappu Pallikunhi <manafm@codeaurora.org>