Port in intel-dbus-interfaces content

This takes the com.intel.Control.* content from the
intel-dbus-interfaces repo and puts it into the yaml/com/intel subdir.

Tested:
    meson build -Ddata_com_intel=true && ninja -C build
    Configures and builds, creating a library with the
    com.intel.Control.* interfaces in it (inspected using nm)

Change-Id: I42b07b734483a4a2c9ba89e1bcadbc08d5b074b5
Signed-off-by: Vernon Mauery <vernon.mauery@linux.intel.com>
diff --git a/gen/com/intel/meson.build b/gen/com/intel/meson.build
index f0bbed6..4fda1d7 100644
--- a/gen/com/intel/meson.build
+++ b/gen/com/intel/meson.build
@@ -1,2 +1,3 @@
 # Generated file; do not modify.
+subdir('Control')
 subdir('Protocol')