vendor.sh: split up setvfile()

split the actual bootstrapping to getvfile()

setvfile only sets the config, but then it will
call getvfile() to act on that config.

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

include/inject.sh

@@ -113,7 +113,7 @@ readkconfig()
 	x_ rm -f "$xbmktmp/cbcfg"
 	fx_ scankconfig x_ find "$boarddir/config" -type f
 	eval "`setcfg "$xbmktmp/cbcfg" 1`"
-	setvfile "$@" && return 1; :
+	setvfile "$@" || return 1; :
 }
 
 scankconfig()