security-smack: set up layer
security-smack: set up layer

The expectation is that we will have classes and recipes, and our recipes will
need to be able to override recipes from other layers (say, a patched rpm 4.11
overriding rpm 5 from oe-core).

Signed-off-by: Patrick Ohly <0fc9d825c622b2a5ac5160289c29f03654b10648@intel.com>

acornea/meta-intel-iot-security,izaman/meta-intel-iot-security,acornea/meta-intel-iot-security,acornea/meta-intel-iot-security,01org/meta-intel-iot-security,izaman/meta-intel-iot-security,izaman/meta-intel-iot-security,izaman/meta-intel-iot-security,acornea/meta-intel-iot-security,acornea/meta-intel-iot-security,pohly/meta-intel-iot-security,pohly/meta-intel-iot-security,pohly/meta-intel-iot-security,01org/meta-intel-iot-security,01org/meta-intel-iot-security,01org/meta-intel-iot-security,izaman/meta-intel-iot-security