Add rdepends: pyphosphor-utils to phosphor-mapper

Phosphor-mapper requires pyphosphor-utils.

Change-Id: Ied92da5e70e9967f926b5f6bd41472cb537f389f
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/meta-phosphor/common/recipes-phosphor/dbus/phosphor-mapper.bb b/meta-phosphor/common/recipes-phosphor/dbus/phosphor-mapper.bb
index 6797af6..6b116b6 100644
--- a/meta-phosphor/common/recipes-phosphor/dbus/phosphor-mapper.bb
+++ b/meta-phosphor/common/recipes-phosphor/dbus/phosphor-mapper.bb
@@ -29,6 +29,7 @@
         python-dbus \
         python-pygobject \
         pyphosphor-dbus \
+        pyphosphor-utils \
         sdbusplus \
         phosphor-logging \
         "