ARM: dts: msm: add stub regulator devices for Lito

Add stub regulator devices for the SMPS, LDO, and BOB regulators
found on the PM8150, PM8150A, and PM8009 PMIC chips which are
used on Lito boards. This ensures that consumers can make use
of the regulators with appropriate voltage limits.

Change-Id: If798cb471915ef0a55db4f8ca1d5d8eb170f7a50
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>