util: introduce siphash24_compress_boolean()

src/basic/siphash24.c

@@ -151,6 +151,12 @@ void siphash24_compress(const void *_in, size_t inlen, struct siphash *state) {
         }
 }
 
+void siphash24_compress_boolean(bool in, struct siphash *state) {
+        int i = in;
+
+        siphash24_compress(&i, sizeof i, state);
+}
+
 uint64_t siphash24_finalize(struct siphash *state) {
         uint64_t b;