This is a squash of the following commits: * Specify a non-existent dt directory to avoid using dt fstab * Add system_ext, product and odm partitions * drop support for vboot 1.0 * Flash dummy super image if needed * AndroidBoard: Fix image paths * Move super_dummy build to Android.mk Co-authored-by: me-cafebabe <me_cafebabe@hotmail.com> Co-authored-by: Joshua Blanchard <joshua.lee.bbg@gmail.com> Co-authored-by: Tim Zimmermann <tim@linux4.de> Co-authored-by: P-Salik <peersalik16@gmail.com> Co-authored-by: Chenyang Zhong <zhongcy95@gmail.com> Signed-off-by: Namkhai B <nk@nkeor.me> [Convert some makefiles to blueprint] Signed-off-by: Edrick Sinsuan <evcsinsuan@gmail.com>