lib/device_map: add TI dra7-evm board
lib/device_map: add TI dra7-evm board

LAVA device-type merged into upstream LAVA:
https://git.linaro.org/lava/lava-server.git/commit/?id=3682a7f55b2a5773586d5fb5977f6586a08cd682

Change-Id: Ibe9253ec88dc4a0f8181a5e72daf13e300a44d47
Signed-off-by: Kevin Hilman <f9849b02abe18c1ece6bd40346458ed53f49d31b@baylibre.com>

kernelci/lava-ci-staging,kernelci/lava-ci-staging,kernelci/lava-ci-staging