FLASH Management: Add Blank Check functionality

Signed-off-by: Zarko Kostadinovski <zare_aw@yahoo.com>
Configs: Implement SW management config internal FLASH read and write

Signed-off-by: Zarko Kostadinovski <zare_aw@yahoo.com>
SW Management: Temperature event configuration

Signed-off-by: Zarko Kostadinovski <zare_aw@yahoo.com>
Configs: Magic Hack! Implement workaroud for nonworking __section_begin

Signed-off-by: Zarko Kostadinovski <zare_aw@yahoo.com>