Yocto 2.3

Move OpenBMC to Yocto 2.3(pyro).

Tested: Built and verified Witherspoon and Palmetto images
Change-Id: I50744030e771f4850afc2a93a10d3507e76d36bc
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Resolves: openbmc/openbmc#2461
diff --git a/import-layers/meta-raspberrypi/.gitignore b/import-layers/meta-raspberrypi/.gitignore
index bd5616a..706144a 100644
--- a/import-layers/meta-raspberrypi/.gitignore
+++ b/import-layers/meta-raspberrypi/.gitignore
@@ -3,3 +3,5 @@
 .*.swp
 *.orig
 *.rej
+*.log
+docs/_build