meta-fii: meta-kudo: Replace append directive with += in bmc-update

Replace append directive with += in kudo-bmc-update bb recipe

Signed-off-by: Ashwin Murali <ashwin.murali@fii-na.com>
Change-Id: I91e02e7c671783a885015610a59e3383a2bf3f60
diff --git a/meta-fii/meta-kudo/recipes-kudo/kudo-fw-utility/kudo-bmc-update.bb b/meta-fii/meta-kudo/recipes-kudo/kudo-fw-utility/kudo-bmc-update.bb
index 0b7cfbe..a95c873 100644
--- a/meta-fii/meta-kudo/recipes-kudo/kudo-fw-utility/kudo-bmc-update.bb
+++ b/meta-fii/meta-kudo/recipes-kudo/kudo-fw-utility/kudo-bmc-update.bb
@@ -10,7 +10,7 @@
 RPROVIDES:${PN} += "virtual/bmc-update"
 FILES:${PN} += "${datadir}/phosphor-ipmi-flash/config-bmc.json"
 
-SRC_URI:append:kudo = " \
+SRC_URI += " \
     file://config-bmc.json \
     "