Without the leading slash, these ignore lines will ignore these names in
any subdirectory. This was ignoring Zephyr targets files, because of
the same name.
Signed-off-by: David Brown <david.brown@linaro.org>
The Zephyr build system does strange things if it refers to source
directories above the main Makefile (generating
outdir/<target>/../boot/... paths). For now, fix this by moving the
Zephyr Makefile to the top-level in the tree. This shouldn't have much
impact on Mynewt, as it doesn't use makefiles.
David Brown