openpower/witherspoon: add uart-render-controller package

This change adds a small daemon to monitor the state of the host (power
and video device status), and start/stop the fbterm UART renderer as
appropriate.

Change-Id: I6c7cf7a88e9a19cd87d6b781a4a1519597882345
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
diff --git a/meta-witherspoon/recipes-phosphor/video/uart-render-controller/uart-render-controller.service b/meta-witherspoon/recipes-phosphor/video/uart-render-controller/uart-render-controller.service
new file mode 100644
index 0000000..c97c897
--- /dev/null
+++ b/meta-witherspoon/recipes-phosphor/video/uart-render-controller/uart-render-controller.service
@@ -0,0 +1,14 @@
+
+[Unit]
+Description=Witherspoon UART render controller
+Requires=xyz.openbmc_project.State.Host.service
+After=xyz.openbmc_project.State.Host.service
+
+[Service]
+ExecStart=/usr/sbin/obmc-uart-render-controller \
+	  /sys/devices/platform/ahb/ahb:apb/1e6e2000.syscon/1e6e2000.syscon:scratch/vga0 \
+	  /sys/devices/platform/ahb/ahb:apb/1e6e2000.syscon/1e6e2000.syscon:scratch/dac_mux \
+	  fbterm.service
+
+[Install]
+WantedBy=obmc-standby.target