sdbusplus: srcrev bump c67e1e8730..e4f21dfbf0

Waqar Hameed (1):
      message: Declare getters as const member functions

(From meta-phosphor rev: 742385416d3546911579258efebc2ff9cf1bcb5d)

Change-Id: I0d8736128810a6e3b63869b17c9087983855e4a3
Signed-off-by: Andrew Geissler <openbmcbump-github@yahoo.com>
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/meta-phosphor/recipes-extended/sdbusplus/sdbusplus-rev.inc b/meta-phosphor/recipes-extended/sdbusplus/sdbusplus-rev.inc
index 76df354..5a60f6c 100644
--- a/meta-phosphor/recipes-extended/sdbusplus/sdbusplus-rev.inc
+++ b/meta-phosphor/recipes-extended/sdbusplus/sdbusplus-rev.inc
@@ -3,4 +3,4 @@
 PV = "1.0+git${SRCPV}"
 
 SRC_URI += "git://github.com/openbmc/sdbusplus"
-SRCREV = "c67e1e8730a2d3dcb155b21ced735ee188e8ea7f"
+SRCREV = "e4f21dfbf0cc6e4cabda4741c1e4df2a6a1bba46"