MCUBoot: Multi memory load feature

[DOAR-Infineon]

Implement multi memory boot feature

In the current implementation, the ability to launch several applications using different memory modes has been added.
Use cases: multi core and ram app boot alongside with flash based applications

MCUBOOT_MULTI_MEMORY_LOAD
--- Feature: partial multi-image boot for RAM based applications
--- Feature: partial multi-image boot for Flash applications

These changes were made to make MCUBoot able to work with flash and ram images independently.
The use case that we need to support, a multi image configuration:

Application_1 boots from RAM
Application_2 boots from FLASH
Application_N boots from FLASH
Example:

image_boot_config_t image_boot_config[BOOT_IMAGE_NUMBER] = {
    {
        .mode = IMAGE_BOOT_MODE_RAM,
        .address = 0x08012000,
        .size = 0x00010000,
    },
    {
        .mode = IMAGE_BOOT_MODE_FLASH,
        .address = 0x10002000,
        .size = 0x00008000,
    },
};

/* Perform MCUboot */
for (uint32_t id = 0U; id < (uint32_t)BOOT_IMAGE_NUMBER; id++) {
    BOOT_LOG_INF("Processing img id: %d", id);
#if !defined(MCUBOOT_RAM_LOAD) || defined(MCUBOOT_MULTI_MEMORY_LOAD)
    if (image_boot_config[id].mode == IMAGE_BOOT_MODE_FLASH) {
        FIH_CALL(boot_go_for_image_id, fih_rc, &rsp[id], id);
    } else
#endif
    {
#if defined(MCUBOOT_RAM_LOAD)
        FIH_CALL(boot_go_for_image_id_ram, fih_rc, &rsp[id], id);
#endif
    }
}

[d3zd3z]

What is the status of this?