Fan control: Enable data generation

Start running the python script that generates the
fan zone data structures during the build.

If the paths to the 2 yaml files aren't provided during
configure, then the yaml in the example directory will
be used instead.

Change-Id: I9f67c1b94b5302c30ac87b0f80746854c42776b2
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/.gitignore b/.gitignore
index f3d36e5..b49549b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,4 @@
 fan_detect_defs.cpp

 phosphor-fan-presence-tach

 phosphor-fan-control

+fan_zone_defs.cpp