Add support in the rpm-regulator-smd driver for the "bypa" bypass mode disallow parameter. This parameter can be used to instruct the RPM that a given LDO should never be put into bypass mode because its load is sensitive to voltage supply noise. Change-Id: I34fdcdb88107f94b78f2ace4a0512fe4ca94779c Signed-off-by: David Collins <collinsd@codeaurora.org>