cros-build/dedede: add EC firmware image
Update the build script for dedede to build the EC firmware image and add prebuilt image in the firmware folder.
Signed-off-by: Laura Nao laura.nao@collabora.com
Update the build script for dedede to build the EC firmware image and add prebuilt image in the firmware folder.
Signed-off-by: Laura Nao laura.nao@collabora.com