homed: move HOME_UID_{MIN,MAX} into a header we can reuse in homework.c

src/home/home-util.h

@@ -8,6 +8,10 @@
 #include "time-util.h"
 #include "user-record.h"
 
+/* See https://systemd.io/UIDS-GIDS for details how this range fits into the rest of the world */
+#define HOME_UID_MIN 60001
+#define HOME_UID_MAX 60513
+
 bool suitable_user_name(const char *name);
 int suitable_realm(const char *realm);
 int suitable_image_path(const char *path);

src/home/homed-manager.h

@@ -13,9 +13,6 @@ typedef struct Manager Manager;
 #include "homed-home.h"
 #include "varlink.h"
 
-#define HOME_UID_MIN 60001
-#define HOME_UID_MAX 60513
-
 struct Manager {
         sd_event *event;
         sd_bus *bus;