initscripts: remove -i from halt/reboot arguments and allow override

Introduces a variable HALTARGS which specifies the arguments sent to
halt and reboot, and sets the default value to "-d -f", dropping the
previous -i (shut down all network interfaces before halt/reboot, which
causes a freeze with NFS root.)

Fixes [YOCTO #997].

(From OE-Core rev: ace183894a5319cd73c94fd2653bbe52f29dca0b)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/initscripts/initscripts-1.0/halt

@@ -24,6 +24,6 @@ then
 	hddown=""
 fi
 
-halt -d -f -i -p $hddown
+halt SED_HALTARGS -p $hddown
 
 : exit 0

meta/recipes-core/initscripts/initscripts-1.0/reboot

@@ -12,4 +12,4 @@
 PATH=/sbin:/bin:/usr/sbin:/usr/bin
 
 echo -n "Rebooting... "
-reboot -d -f -i
+reboot SED_HALTARGS

meta/recipes-core/initscripts/initscripts_1.0.bb

@@ -6,7 +6,7 @@ DEPENDS = "makedevs"
 RDEPENDS_${PN} = "makedevs"
 LICENSE = "GPLv2"
 LIC_FILES_CHKSUM = "file://COPYING;md5=751419260aa954499f7abaabaa882bbe"
-PR = "r124"
+PR = "r125"
 
 SRC_URI = "file://functions \
            file://halt \
@@ -38,6 +38,13 @@ SRC_URI_append_arm = " file://alignment.sh"
 
 KERNEL_VERSION = ""
 
+HALTARGS ?= "-d -f"
+
+do_configure() {
+	sed -i -e "s:SED_HALTARGS:${HALTARGS}:g" ${WORKDIR}/halt
+	sed -i -e "s:SED_HALTARGS:${HALTARGS}:g" ${WORKDIR}/reboot
+}
+
 do_install () {
 #
 # Create directories and install device independent scripts