phosphor-mapper.bb: bump version

Change-Id: I3815cf802e82b0e44542bcb1fb17c9c6438f98c2
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 ab4589b..9430e34 100644
--- a/common/recipes-phosphor/dbus/phosphor-mapper.bb
+++ b/common/recipes-phosphor/dbus/phosphor-mapper.bb
@@ -20,7 +20,7 @@
         "
 SRC_URI += "git://github.com/openbmc/phosphor-objmgr"
 
-SRCREV = "a562704d9b9c3f77deb1b957d0f586f7f5b9ca3e"
+SRCREV = "7bb1d0f90e66194e2dbf0ffdd4d28731e562033a"
 
 S = "${WORKDIR}/git"