busybox: Install /etc/default/rcS when used as init system

This helps in using sysvinit scripts with busybox init system as well

(From OE-Core rev: 991394be9e695f9ddb5e2fca167c06f7a56a7449)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/busybox/busybox.inc

@@ -312,6 +312,7 @@ do_install () {
 	if grep -q "CONFIG_INIT=y" ${B}/.config; then
 		install -D -m 0755 ${WORKDIR}/rcS ${D}${sysconfdir}/init.d/rcS
 		install -D -m 0755 ${WORKDIR}/rcK ${D}${sysconfdir}/init.d/rcK
+		install -D -m 0755 ${WORKDIR}/rcS.default ${D}${sysconfdir}/default/rcS
 	fi
 
 	if ${@bb.utils.contains('DISTRO_FEATURES','systemd','true','false',d)}; then

meta/recipes-core/busybox/busybox_1.32.0.bb

@@ -33,6 +33,7 @@ SRC_URI = "https://busybox.net/downloads/busybox-${PV}.tar.bz2;name=tarball \
            file://getopts.cfg \
            file://resize.cfg \
            ${@["", "file://init.cfg"][(d.getVar('VIRTUAL-RUNTIME_init_manager') == 'busybox')]} \
+           ${@["", "file://rcS.default"][(d.getVar('VIRTUAL-RUNTIME_init_manager') == 'busybox')]} \
            ${@["", "file://mdev.cfg"][(d.getVar('VIRTUAL-RUNTIME_dev_manager') == 'busybox-mdev')]} \
            file://syslog.cfg \
            file://unicode.cfg \

meta/recipes-core/busybox/files/rcS.default

@@ -0,0 +1 @@
+# SULOGIN = "yes"