This makes configs much less dependent on directory layout.
As of this commit the following variables are supported:
* @BOARD_BUILD_DIR@ - absolute path under build/
* @BLOB_DIR@ - absolute path to blobs/
Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com>
EC signatures requires that the digest has the corresponding length. Removing the hardcoded sha2-256 hash function and adding support of sha2-384 and sha2-512 should allow using EC crypto.
