fix(stm32mp13-fdts): cleanup DT files

Instead of adding all peripheral nodes in SoC DT files, and then
removing them with BL2 overlay file, just remove them from SoC files.
And remove peripherals that are not used in TF-A on STM32MP13.

Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Change-Id: I0c408d29b55cb94644c92539460fc62485781223
6 files changed