strv: Reduce transitive includes

src/cryptsetup/cryptsetup-keyfile.c

@@ -4,6 +4,7 @@
 #include "fileio.h"
 #include "log.h"
 #include "path-util.h"
+#include "string-util.h"
 #include "strv.h"
 
 int find_key_file(const char *key_file, char **search_path, const char *bindname, struct iovec *ret_key) {

src/cryptsetup/cryptsetup.c

@@ -26,6 +26,7 @@
 #include "efi-loader.h"
 #include "env-util.h"
 #include "escape.h"
+#include "extract-word.h"
 #include "fileio.h"
 #include "fs-util.h"
 #include "fstab-util.h"