Replace seldom occurrences of FLASH_DRIVER_NAME by equivalent
and commonly used FLASH_DEV_NAME.
Fixes#5919.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Moved fetch of flash device bindings to early initialization of the
application.
Device bindings are constant while the application is running so
it is better to fetch it at startup, and not every time flash_map
procedures are called.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Introduce flas_map module is abstraction over flash memory and its
driver for using flash memories along with description of
available flash areas.
Module provides simple API for write/read/erase and so one.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>