Merge "Display the TARGET_ARCH_VARIANT"

$(info   TARGET_BUILD_TYPE=$(TARGET_BUILD_TYPE))

$(info   TARGET_BUILD_APPS=$(TARGET_BUILD_APPS))

$(info   TARGET_ARCH=$(TARGET_ARCH))

$(info   TARGET_ARCH_VARIANT=$(TARGET_ARCH_VARIANT))

$(info   HOST_ARCH=$(HOST_ARCH))

$(info   HOST_OS=$(HOST_OS))

$(info   HOST_BUILD_TYPE=$(HOST_BUILD_TYPE))