meta-openpower: prep for new override syntax

Change-Id: I5ca16c6fa7bc616bfa9bc41c4f86d32fd92b0287
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/meta-openpower/recipes-bsp/ipl/ipl_git.bb b/meta-openpower/recipes-bsp/ipl/ipl_git.bb
index edd44bc..003b7fb 100644
--- a/meta-openpower/recipes-bsp/ipl/ipl_git.bb
+++ b/meta-openpower/recipes-bsp/ipl/ipl_git.bb
@@ -18,6 +18,6 @@
         libekb pdbg autoconf-archive guard \
         "
 
-RDEPENDS_${PN} = "phal-devtree"
+RDEPENDS:${PN} = "phal-devtree"
 
 EXTRA_OECONF = "CHIP=p10"