regulator: Add to build.

Update #3869.

rtemsbsd/local/regdev_if.c

@@ -0,0 +1,27 @@
+#include <machine/rtems-bsd-kernel-space.h>
+
+/*
+ * This file is produced automatically.
+ * Do not modify anything in here by hand.
+ *
+ * Created from source file
+ *   freebsd-org/sys/dev/extres/regulator/regdev_if.m
+ * with
+ *   makeobjops.awk
+ *
+ * See the source file for legal information
+ */
+
+#include <sys/param.h>
+#include <sys/queue.h>
+#include <sys/kernel.h>
+#include <sys/kobj.h>
+#include <sys/types.h>
+#include <dev/ofw/ofw_bus.h>
+#include <machine/bus.h>
+#include <rtems/bsd/local/regdev_if.h>
+
+struct kobjop_desc regdev_map_desc = {
+	0, { &regdev_map_desc, (kobjop_t)regdev_default_ofw_map }
+};
+