tools: make sure initramfs-tools dtbo hook is installed on all systems

fixes: RobertCNelson/bb-kernel#23 (comment)
Signed-off-by: Robert Nelson <[email protected]>

install.sh

@@ -1,6 +1,6 @@
 #!/bin/bash -e
 #
-# Copyright (c) 2015 Robert Nelson <[email protected]>
+# Copyright (c) 2015-2016 Robert Nelson <[email protected]>
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -38,7 +38,8 @@ pkg="build-essential"
 check_dpkg
 
 if [ ! -f /usr/share/initramfs-tools/hooks/dtbo ] ; then
-	deb_pkgs="${deb_pkgs}bb-customizations "
+	sudo cp -v ./tools/dtbo /usr/share/initramfs-tools/hooks/dtbo
+	sudo chmod +x /usr/share/initramfs-tools/hooks/dtbo
 else
 	if [ ! -x /usr/share/initramfs-tools/hooks/dtbo ] ; then
 		sudo chmod +x /usr/share/initramfs-tools/hooks/dtbo

tools/dtbo

@@ -0,0 +1,15 @@
+#!/bin/sh -e
+# Copy the *.dtbo's into the initramfs
+
+if [ "$1" = "prereqs" ]; then exit 0; fi
+
+. /usr/share/initramfs-tools/hook-functions
+
+if [ -d /lib/firmware/ ] ; then
+    unset check
+    check=$(ls /lib/firmware/ | grep dtbo | head -n 1)
+    if [ ! "x${check}" = "x" ] ; then
+        mkdir -p $DESTDIR/lib/firmware/
+        cp -a /lib/firmware/*.dtbo $DESTDIR/lib/firmware/
+    fi
+fi