phosphor-mapper.bb: bump version

Change-Id: I3fba713a7e6f6133033b4bc3a79d5249503a3d76
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/common/recipes-phosphor/dbus/phosphor-mapper.bb b/common/recipes-phosphor/dbus/phosphor-mapper.bb
index 58f6acb..6afc092 100644
--- a/common/recipes-phosphor/dbus/phosphor-mapper.bb
+++ b/common/recipes-phosphor/dbus/phosphor-mapper.bb
@@ -35,7 +35,7 @@
         "
 SRC_URI += "git://github.com/openbmc/phosphor-objmgr"
 
-SRCREV = "2fd4b1f88492ad5e743ff4321beb9fe0d052cc80"
+SRCREV = "e6add0770686cfdc18ffeb4979eac8d1a0d721ec"
 
 S = "${WORKDIR}/git"