These DT files will be used by STM32MP2 boards. They embed DDR parameters for LPDDR4 1x16Gb 1*32bits, at 800MHz or 1200MHz. Signed-off-by: Yann Gautier <yann.gautier@foss.st.com> Change-Id: I4017e44b3e9d01735d76518666d05405c2bd976b