phosphor-mapper.bb: bump version

Change-Id: I45abac4d36c63ec3c25d9c8e4522a9bdcca519ed
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/common/recipes-phosphor/dbus/phosphor-mapper.bb b/common/recipes-phosphor/dbus/phosphor-mapper.bb
index a7e73dc..4a6ff14 100644
--- a/common/recipes-phosphor/dbus/phosphor-mapper.bb
+++ b/common/recipes-phosphor/dbus/phosphor-mapper.bb
@@ -23,7 +23,7 @@
         "
 SRC_URI += "git://github.com/openbmc/phosphor-objmgr"
 
-SRCREV = "f1d7c6e0512d04c520201f3b98d01a7e2a5c8fb5"
+SRCREV = "66da92df5eb1ad1de8110a085f17a9a8f50f5648"
 
 S = "${WORKDIR}/git"