util: split-out hwclock.[ch]

src/core/dbus-manager.c

@@ -31,6 +31,7 @@
 #include "dbus-common.h"
 #include "install.h"
 #include "watchdog.h"
+#include "hwclock.h"
 
 #define BUS_MANAGER_INTERFACE_BEGIN                                     \
         " <interface name=\"org.freedesktop.systemd1.Manager\">\n"

src/core/main.c

@@ -54,6 +54,7 @@
 #include "hostname-setup.h"
 #include "machine-id-setup.h"
 #include "locale-setup.h"
+#include "hwclock.h"
 #include "selinux-setup.h"
 #include "ima-setup.h"