For the flash driver, the base address is the MCU internal flash
address (usually 0x8000000). This PR gets the that address
from the device tree node "st,stm32-nv-flash"
instead of relying on the CONFIG_FLASH_BASE_ADDRESS
which might differ when building for another flash memory.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
When Bluetooth is enabled, it is required to arbitrate flash accesses
between RF and write accesses (for user activity).
A dedicated flash manager is provided as part of STM32WBA BLE lib.
Implement a dedicated driver using FM Apis to handle RF activity.
Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>