ARM: dts: msm: add device trees for APQ8084 boards with new power grid

Add device trees which are specific to APQ8084 boards which
utilize the new power grid.  The new power grid differs from the
older power grid in that the consumers and constraints of PMA8084
LDO 3 and LDO 4 have been swapped.  Since the new power grid will
be used by all boards going forward, treat it as a default.
Therefore, rename all dts files which correspond to boards using
the old power grid.

Change-Id: I35caccedcee59c303695fd96d3c1aae97da6fe68
Signed-off-by: David Collins <collinsd@codeaurora.org>