phosphor-mapper.bb: bump version

Change-Id: I49b8bdefa7a351f6196949479204d8e4d20235fd
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 4a8eb4e..b125e9a 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 = "7f42ad2a3f5cf2694e13c38d0089396aa3192ac8"
+SRCREV = "84e331a3095810ad9505a8a73a31819fa0f569ea"
 
 S = "${WORKDIR}/git"