skeleton-rev.bbclass: bump version

Change-Id: I9bec4d5d5a5c4087cdf5bc40e3fc53bca292c04e
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/meta-phosphor/classes/skeleton-rev.bbclass b/meta-phosphor/classes/skeleton-rev.bbclass
index 751c301..6a6d49d 100644
--- a/meta-phosphor/classes/skeleton-rev.bbclass
+++ b/meta-phosphor/classes/skeleton-rev.bbclass
@@ -1,2 +1,2 @@
-SRCREV ?= "e87cc29c7f473b46025b9cda8add7c63566db0a3"
+SRCREV ?= "d4bca7bd9c5ace712f033c625031072a0b37f3a2"
 SKELETON_URI ?= "git://github.com/openbmc/skeleton"