stm32mp: dram_init: Get RAM size from DT if no RAM driver found

In case there is no RAM driver retrieve RAM size from DT as fallback.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
1 file changed