Create a config ARCH_MSM_DT and common board-dt.c
to encapsulate the MSM DT based targets.
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NRohit Vaswani <rvaswani@codeaurora.org>
Signed-off-by: NDavid Brown <davidb@codeaurora.org>