unify coreboot elfdir (DO_NOT_FLASH)

use a common string when setting this path

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

script/roms

@@ -193,8 +193,7 @@ build_roms()
 {
 	x_ ./update trees -b coreboot $board
 
-	_cbrom="elf/coreboot_nopayload_DO_NOT_FLASH"
-	_cbrom="$_cbrom/$board/${initmode}_$displaymode"
+	_cbrom="$cbelfdir/$board/${initmode}_$displaymode"
 	[ "$initmode" = "normal" ] && _cbrom="${_cbrom%"_$displaymode"}"
 	_cbrom="$_cbrom/coreboot.rom"
 	cbrom="$(mktemp -t coreboot_rom.XXXXXXXXXX)"

script/trees

@@ -78,8 +78,7 @@ build_projects()
 
 build_targets()
 {
-	[ "$elfdir" = "elf/coreboot" ] && \
-		elfdir="elf/coreboot_nopayload_DO_NOT_FLASH"
+	[ "$elfdir" = "elf/coreboot" ] && elfdir="$cbelfdir"
 
 	[ -d "$cfgsdir" ] || $err "directory, $cfgsdir, does not exist"
 	[ -f "$listfile" ] || $err "list file, $listfile, does not exist"