Remove most of mynewt specific stuff to a separate port package. This
should make mcuboot less "mynewt'y" and slightly easier to port to.
- Mynewt specific stuff moved to boot/mynewt.
- Sample app moved from apps/boot to boot/mynewt.
- Use MYNEWT_VAL macro only on mynewt port.
- BOOTUTIL_* and MYNEWT_VAL() usage moved to MCUBOOT_ defines.
The original Zephyr platform support files use tabs for indentation
(to match the Zephyr project). Since this code is all together, and
will be used as the basis for other platforms, fix this indentation to
match that used by the rest of mynewt.
This change is clean with respect to "git show -b", and only changes
the indentation of the beginning of lines.
Make it clear in the top-level Makefile how to configure mcuboot for
Zephyr for a particular signing algorithm. Currently supported, are the
RSA signatures, and ECDSA with the P-256 curve. These configuration
lines will select the code built in the bootloader, as well as which
public key gets included with the image.
This also adds a demo public key for the P-256 signatures.
The Zephyr build systems makes some assumptions about the directory
layout, and encounters problems if the necessary path contains "../..".
To help this, place the zephyr directory next to the bootutil directory
so that the Makefile can just refer to "../bootutil". This keeps all of
the build artifacts under the proper top-level directory.
Fabio Utzig