SPDX_VERSION is used in DEPLOY_DIR_SPDX but if is not defined,
will default to SPDX-1.1
Define SPDX_VERSION to have the correct deploy path, to align
with master branch behaviour.
The change in path was introduced in 8996d0899d
CC: Kamel Bouhara (Schneider Electric) <kamel.bouhara@bootlin.com>
CC: JPEWhacker@gmail.com
(From OE-Core rev: 04cc49593a0ba2c51e4f4d477d4587079735b624)
Signed-off-by: Daniel Turull <daniel.turull@ericsson.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>