skeleton-rev.bbclass: bump version

Change-Id: I5a3601e7efdea5030dc7fb3f7c9f2ea447bf66d9
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/classes/skeleton-rev.bbclass b/classes/skeleton-rev.bbclass
index 06a6c3f..f7c8422 100644
--- a/classes/skeleton-rev.bbclass
+++ b/classes/skeleton-rev.bbclass
@@ -1,2 +1,2 @@
-SRCREV ?= "1a219003cd4d3b901639b663f5d23fd3ec300bd7"
+SRCREV ?= "666be2aee1f4c2e123a6823e59c7d883709db89c"
 SKELETON_URI ?= "git://github.com/openbmc/skeleton"