util: ms command to calculate length of operations

This can be used to calculate approximate RTCK frequency
for instance.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>

src/openocd.c

@@ -33,6 +33,7 @@
 #include <jtag/jtag.h>
 #include <jtag/transport.h>
 #include <helper/ioutil.h>
+#include <helper/util.h>
 #include <helper/configuration.h>
 #include <flash/nor/core.h>
 #include <flash/nand/core.h>
@@ -268,6 +269,9 @@ int openocd_main(int argc, char *argv[])
 
 	cmd_ctx = setup_command_handler(NULL);
 
+	if (util_init(cmd_ctx) != ERROR_OK)
+		return EXIT_FAILURE;
+
 	if (ioutil_init(cmd_ctx) != ERROR_OK)
 		return EXIT_FAILURE;