handle build.list from config/data/, not config/

certain code checks for build.list, to skip it, for
example in items()

we already use config/data/grub to store grub config data
that applied to all trees

create these directories too:

config/data/coreboot
config/data/u-boot
config/data/seabios

move the respective build.list files in here, and also
to config/data/grub

now multi-tree projects contain, per directory, just the
target.cfg file and the patches directory. this is much
cleaner, because some of the logic can be simplified more

Signed-off-by: Leah Rowe <leah@libreboot.org>

include/lib.sh

@@ -122,7 +122,6 @@ items()
 	for x in "$1/"*; do
 		# -e used because this is for files *or* directories
 		[ -e "$x" ] || continue
-		[ "${x##*/}" = "build.list" ] && continue
 		printf "%s\n" "${x##*/}" 2>/dev/null
 		rval=0
 	done

script/trees

@@ -11,7 +11,7 @@ set -u -e
 
 eval "$(setvars "" xarch cfgsdir cdir config config_name xlang mode makeargs \
     listfile project target target_dir targets tree _f target1 bootstrapargs \
-    autoconfargs cmakedir elfdir autogenargs xtree)"
+    autoconfargs cmakedir elfdir autogenargs xtree datadir)"
 
 main()
 {
@@ -34,6 +34,7 @@ main()
 	[ -z "$_f" ] && $err "missing flag (-m/-u/-b/-c/-x/-f/-s/-l/-n)"
 	[ -z "$project" ] && $err "project name not specified"
 	elfdir="elf/$project"
+	datadir="config/data/$project"
 	cfgsdir="config/$project"
 
 	remkdir "${tmpgit%/*}"
@@ -66,7 +67,7 @@ build_targets()
 
 	[ -d "$cfgsdir" ] || $err "directory, $cfgsdir, does not exist"
 
-	listfile="$cfgsdir/build.list"
+	listfile="$datadir/build.list"
 	[ -f "$listfile" ] || $err "list file, $listfile, does not exist"
 
 	# Build for all targets if no argument is given