meta/conf/layers.conf: Add ca-certificates as ABISAFE
meta-oe was doing this before, but it was triggering a yocto-compat-script
failure during the signature checking.
The ca-certificates changing is ABISAFE, as the certificates themselves do
not modify the compiles behavior of the applications. This should permit
easier upgrades without as much rebuilding.
The original value was set in meta-oe by commit
ff7a4b13c4efeffc5853a93c6ff7265fa3d6c143.
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
