Add new make macro for installing initscripts

We also move the initscript for also to src/initscripts/packages
and use this new macro to install the initscript
Signed-off-by: Jonatan Schlag <jonatan.schlag@ipfire.org>

src/initscripts/packages/alsa

@@ -0,0 +1,32 @@
+#!/bin/sh
+# Begin $rc_base/init.d/alsa
+
+# Based on sysklogd script from LFS-3.1 and earlier.
+# Rewritten by Gerard Beekmans  - gerard@linuxfromscratch.org
+# ALSA specific parts by Mark Hymers - markh@linuxfromscratch.org
+# Stores mixer settings in the default location: /etc/asound.state
+
+. /etc/sysconfig/rc
+. $rc_functions
+
+case "$1" in
+	start)
+		boot_mesg "Starting ALSA...   Restoring volumes..."
+		modprobe snd_pcm_oss >/dev/null 2>&1 || failed=1
+		modprobe snd_mixer_oss >/dev/null 2>&1 || failed=1
+		(exit ${failed})
+		evaluate_retval
+		loadproc /usr/sbin/alsactl restore
+		;;
+	stop)
+		boot_mesg "Stopping ALSA...    Saving volumes..."
+		loadproc /usr/sbin/alsactl store
+		;;
+
+	*)
+		echo "Usage: $0 (start|stop)"
+		exit 1
+		;;
+esac
+
+# End $rc_base/init.d/alsa