Add fw test API definition

To facilitate FWU testing, a REST API is defined that will expose
a publically reachable test interface on a device-under-test. Test
cases will execute on a host machine and will communicate with the
DUT via the API. The API initially provides endpoints for RPC
level access to firmware services.

Signed-off-by: Julian Hall <julian.hall@arm.com>
Change-Id: Ie3c3bf5915e54f1d42ab34e8cc77eea577802cdb
1 file changed