bootloader_utility_load_boot_image_from_deep_sleep() function

Load that application which was worked before we go to the deep sleep. If chip supports the RTC memory: Checks the reboot reason if it is the deep sleep and has a valid partition in the RTC memory then try to load the application which was worked before we go to the deep sleep. If chip does not support the RTC memory: Checks the reboot reason if it is the deep sleep then the partition table is read to select and load an application which was worked before we go to the deep sleep.