path-util: Reduce transitive includes

src/shared/boot-entry.c

@@ -1,5 +1,6 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
+#include "alloc-util.h"
 #include "boot-entry.h"
 #include "chase.h"
 #include "fd-util.h"
@@ -10,6 +11,7 @@
 #include "path-util.h"
 #include "string-table.h"
 #include "string-util.h"
+#include "strv.h"
 #include "utf8.h"
 
 bool boot_entry_token_valid(const char *p) {