ARM: dts: msm: Add the PIL LPASS device for MSM Samarium

Add the PIL LPASS device node to the device tree, to allow
the PIL driver to probe and to bring the LPASS out of reset.

Change-Id: I0bd4a5a84c3fb6bba5d0bbe0816435490e2da24f
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>