ARM: dts: msm: Add a DTS file for WCD9326 512MB DDR MSM8909 MTP

Add a DTS file to support 512MB DDR configuration for 8909MTP
with WCD9326 external codec. Also add the same for APQ platform
as well.

Change-Id: I1f5019b82ddcc4d3593df97d9cc2feef9a85f204
Signed-off-by: Venkatesh Yadav Abbarapu <vabbar@codeaurora.org>