This patch allows rimage to sign FW binaries using MEU tool.
Paths to MEU and private key have to be provided during config step.
Signed-off-by: Tomasz Lauda <tomasz.lauda@linux.intel.com>
rimage is being moved from tools repo to sof repo since there is now a
cyclic dependency between both repos and sof needs rimage for it's
build.
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>