skeleton-rev.bbclass: bump version

Change-Id: If66c256832291777542563ebe960fb59ef62be3c
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/classes/skeleton-rev.bbclass b/classes/skeleton-rev.bbclass
index d7ed4bf..ebbb73b 100644
--- a/classes/skeleton-rev.bbclass
+++ b/classes/skeleton-rev.bbclass
@@ -1,2 +1,2 @@
-SRCREV ?= "9d572eb36fbf9a1877502fe47db2313a6ac3ab0c"
+SRCREV ?= "517b35ed92ad2c0df5e048711c175bacb632f6d0"
 SKELETON_URI ?= "git://github.com/openbmc/skeleton"