meta-facebook: support hardware watchdog

Append exiting systemd config under recipes-core for all facebook platform.

Tested: tested and verified on greatlakes platform.
Change-Id: If723c65de35995e545393c577c41979c11399373
Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
diff --git a/meta-facebook/recipes-core/systemd/systemd_%.bbappend b/meta-facebook/recipes-core/systemd/systemd_%.bbappend
index c069b22..08f3f45 100644
--- a/meta-facebook/recipes-core/systemd/systemd_%.bbappend
+++ b/meta-facebook/recipes-core/systemd/systemd_%.bbappend
@@ -1,14 +1,14 @@
 FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"
 
-SRC_URI:append:bletchley = " \
+SRC_URI:append = " \
   file://40-system.conf \
   "
 
-FILES:${PN}:append:bletchley = " \
+FILES:${PN}:append = " \
   ${systemd_unitdir}/system.conf.d/40-system.conf \
   "
 
-do_install:append:bletchley() {
+do_install:append() {
     install -d -m 0755 ${D}${systemd_unitdir}/system.conf.d/
     install -m 0644 ${WORKDIR}/40-system.conf ${D}${systemd_unitdir}/system.conf.d/
-}
\ No newline at end of file
+}