Switch to toybox date, and add hwclock.

Change-Id: I5116713315c2f86d4dfb6beccf0e41b3fb8a24f7
diff --git a/generated/config.h b/generated/config.h
index c899b75..2babec9 100644
--- a/generated/config.h
+++ b/generated/config.h
@@ -216,8 +216,8 @@
 #define USE_GROUPDEL(...)
 #define CFG_HOST 0
 #define USE_HOST(...)
-#define CFG_HWCLOCK 0
-#define USE_HWCLOCK(...)
+#define CFG_HWCLOCK 1
+#define USE_HWCLOCK(...) __VA_ARGS__
 #define CFG_ICONV 0
 #define USE_ICONV(...)
 #define CFG_INIT 0