Recipes for installing fan definition yaml

This provides the phosphor-fan-control-fan-config virtual to
define the fans required by phosphor-fan-control.

On systems with the MRW, phosphor-fan-control-fan-config-mrw-native.bb
will be used and will run a perl script to generate the yaml
from data in the MRW XML.

On systems without the MRW, if nothing else is done a default
fans.yaml file will be installed into the correct location
by phosphor-fan-control-fan-config-native.bb.  To install a
system specific version, put it into that system's layer along
with a .bbappend of this recipe.

Change-Id: I36889a33e16a456a04b94aba7326dd674bfd2904
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/common/recipes-phosphor/fans/phosphor-fan-control-fan-config/fans.yaml b/common/recipes-phosphor/fans/phosphor-fan-control-fan-config/fans.yaml
new file mode 100644
index 0000000..8a6c271
--- /dev/null
+++ b/common/recipes-phosphor/fans/phosphor-fan-control-fan-config/fans.yaml
@@ -0,0 +1,2 @@
+#Default fan definition YAML - empty.
+#For format, see documentation in fan control code repository example yaml.