openpower/witherspoon: add fbterm package for UART rendering

This change adds a definition for fbterm, customised for rendering UART
data to a local framebuffer device.

fbterm upstream isn't very active - last release was in 2008. So, use a
newer git tree, which includes a couple of fixes and customisations for
our usage in uart rendering.

Change-Id: Ib19e879283548dbe403401b6fecfaaeb8cf74c1c
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
diff --git a/meta-witherspoon/recipes-phosphor/video/fbterm/fb.modes b/meta-witherspoon/recipes-phosphor/video/fbterm/fb.modes
new file mode 100644
index 0000000..dfc51fe
--- /dev/null
+++ b/meta-witherspoon/recipes-phosphor/video/fbterm/fb.modes
@@ -0,0 +1,7 @@
+mode "800x600-60"
+    # D: 40.00 MHz, H: 37.879 kHz, V: 60.32 Hz
+    geometry 800 600 800 600 32
+    timings 0 88 40 23 1 128 4
+    hsync high
+    vsync high
+endmode