meta-fii/meta-kudo: follow the new Yocto override syntax change

Changing the syntax for various yocto files ie. (_ to :) changes to
bb, bbappend and conf files.

Signed-off-by: Mohaimen Alsamarai <mohaimen.alsamarai@fii-na.com>
Change-Id: If25577ee9d98398c1a1ab7f85a0373c46af70245
diff --git a/meta-fii/meta-kudo/recipes-bsp/u-boot/u-boot-fw-utils-nuvoton_%.bbappend b/meta-fii/meta-kudo/recipes-bsp/u-boot/u-boot-fw-utils-nuvoton_%.bbappend
index 5c56e17..7f1ede9 100644
--- a/meta-fii/meta-kudo/recipes-bsp/u-boot/u-boot-fw-utils-nuvoton_%.bbappend
+++ b/meta-fii/meta-kudo/recipes-bsp/u-boot/u-boot-fw-utils-nuvoton_%.bbappend
@@ -1,7 +1,7 @@
-FILESEXTRAPATHS_prepend_kudo := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS:prepend:kudo := "${THISDIR}/${PN}:"
 
-SRC_URI_append_kudo = " file://fw_env.config"
+SRC_URI:append:kudo = " file://fw_env.config"
 
-do_install_append_kudo () {
+do_install:append:kudo () {
   install -m 644 ${WORKDIR}/fw_env.config ${D}${sysconfdir}/fw_env.config
 }