No, I am building 2.1 as follow:
Build Configuration:
BB_VERSION = "1.12.0"
METADATA_BRANCH = "master"
METADATA_REVISION = "077b674"
TARGET_ARCH = "mipsel"
TARGET_OS = "linux"
MACHINE = "dm800"
DISTRO = "openpli"
DISTRO_VERSION = "2.1"