meta-phosphor: prep for new override syntax

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I588025b614416c43aa2d053765ab53bacf890cb5
diff --git a/meta-phosphor/recipes-phosphor/system/obmc-phosphor-sysd.bb b/meta-phosphor/recipes-phosphor/system/obmc-phosphor-sysd.bb
index 9879a61..41a4c1e 100644
--- a/meta-phosphor/recipes-phosphor/system/obmc-phosphor-sysd.bb
+++ b/meta-phosphor/recipes-phosphor/system/obmc-phosphor-sysd.bb
@@ -7,7 +7,7 @@
 inherit obmc-phosphor-pydbus-service
 
 PROVIDES += "virtual/obmc-system-mgmt"
-RPROVIDES_${PN} += "virtual-obmc-system-mgmt"
+RPROVIDES:${PN} += "virtual-obmc-system-mgmt"
 
 S = "${WORKDIR}"
 SRC_URI += "file://${PN}.py"