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/recipes-core/psplash/psplash_git.bbappend b/import-layers/meta-raspberrypi/recipes-core/psplash/psplash_git.bbappend
index 65dc30f..698564b 100644
--- a/import-layers/meta-raspberrypi/recipes-core/psplash/psplash_git.bbappend
+++ b/import-layers/meta-raspberrypi/recipes-core/psplash/psplash_git.bbappend
@@ -1,2 +1,4 @@
 FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
-SPLASH_IMAGES += "file://psplash-raspberrypi-img.h;outsuffix=raspberrypi"
+SPLASH_IMAGES_append_rpi = " file://psplash-raspberrypi-img.h;outsuffix=raspberrypi"
+ALTERNATIVE_PRIORITY_psplash-raspberrypi[psplash] = "10"
+