Add missing defines for SOFT_FAIL/HARD_FAIL in util.h

This is for these previous 2 commits:
  * 428c1b6 Allow checking ssl files are readable (check_ssl_files)
  * a03b123 Also reload SSL context on bip reload, allowing for SSL cert updates

src/util.h

@@ -31,6 +31,9 @@
 #define HASH_NOCASE 1
 #define HASH_DEFAULT 0
 
+#define SOFT_FAIL 0
+#define HARD_FAIL 1
+
 void mylog(int level, char *fmt, ...);
 void _mylog(int level, char *fmt, va_list ap);
 void fatal(char *fmt, ...);