mach-qcom: add support to populate dt nodes for 32-bit platforms

Add support to populate device tree nodes for the new
32-bit platforms under under mach-qcom.

Change-Id: I5fd747de84917c16f28f3f72d7b34b5db157637c
Signed-off-by: Srinivas Ramana <sramana@codeaurora.org>
Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
Signed-off-by: Tengfei Fan <tengfeif@codeaurora.org>