soc: st: stm32mp13: enable direct memory map

Enable dynamic configuration of region mapping with a 1:1
virtual-to-physical address mapping.
This configuration is aligned with the static declaration of the
MMU table using MMU_REGION_FLAT_ENTRY macro.

Signed-off-by: Arnaud Pouliquen <[email protected]>

Author: arnopo

soc/st/stm32/stm32mp13x/Kconfig

@@ -12,3 +12,4 @@ config SOC_SERIES_STM32MP13X
 	select ARM_ARCH_TIMER
 	select SYS_CLOCK_EXISTS
 	select XIP
+	select KERNEL_DIRECT_MAP