Fix DLCC logging

Osmo-CC logging appears again in the log.

src/liblogging/categories.h

@@ -45,6 +45,8 @@ enum {
 	DJITTER,
 };
 
+#define DLCC_DEFINED
+
 extern struct log_info_cat log_categories[];
 extern size_t log_categories_size;
 

src/liblogging/logging.c

@@ -23,6 +23,9 @@
 #include <osmocom/core/utils.h>
 #include <osmocom/core/application.h>
 #include "logging.h"
+#ifdef DLCC_DEFINED
+#include <osmocom/cc/misc.h>
+#endif
 
 int loglevel = LOGL_INFO;
 
@@ -248,7 +251,7 @@ void logging_init(void)
 		.num_cat = log_categories_size,
 	};
 
-#ifdef DLCC
+#ifdef DLCC_DEFINED
 	osmo_cc_set_log_cat(DLCC);
 #endif