ARM: dts: msm: Support all versions of msm8974-liquid

Some devices fail startup tests, and in turn touch
does not work.  Set Pin Dwell to 12us so that the
test will pass as expected.

Change-Id: I6271f18e108aa13886e5bd8b042d01c12542c2d7
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>