jf: Add init_jf and modify releasetools

Signed-off-by: Brandon McAnsh <brandon.mcansh@gmail.com>
jf: set gsm.current.phone-type for each variant

Signed-off-by: Brandon McAnsh <brandon.mcansh@gmail.com>
jf: Add common defconfig

Signed-off-by: Brandon McAnsh <brandon.mcansh@gmail.com>
jf: Fix copy pasta derp from d2

Signed-off-by: Brandon McAnsh <brandon.mcansh@gmail.com>