Odds seem in favour as it builds against the armv7-rpi3
toolchain. Suppose best to follow their advice
Your SamKnows account manager should provide you with the platform name to use.
Your CPE manufacturer will be able to provide you with the toolchain for your device. These are often provided under licence from the chipset vendors (e.g. Broadcom, Intel and Qualcomm), so you may need to sign an agreement in order to obtain it.