Add instructions for fastboot on pandaboard

Change-Id: I28463d7e7379bd8ee22172e89bb1fdcf36c4c6b4
diff --git a/src/source/building-devices.md b/src/source/building-devices.md
index c940475..451b3e1 100644
--- a/src/source/building-devices.md
+++ b/src/source/building-devices.md
@@ -62,6 +62,7 @@
 ---------|------
 maguro   | Press and hold both *Volume Up* and *Volume Down*, then press and hold *Power*
 toro     | Press and hold both *Volume Up* and *Volume Down*, then press and hold *Power*
+panda    | Press and hold *Input*, then press *Power*
 wingray  | Press and hold *Volume Down*, then press and hold *Power*
 stingray | Press and hold *Volume Down*, then press and hold *Power*
 crespo   | Press and hold *Volume Up*, then press and hold *Power*