microblaze: Fix watchdog initialization

The patch:
"blackfin: Move blackfin watchdog driver out of the blackfin arch folder."
(sha1: e9a389a18477c1c57a0b30e9ea8f4d38c6e26e63)
changed hw_watchdog_init() prototype which didn't match
with Microblaze one.
This patch fixes the driver and Microblaze initialization.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/microblaze/lib/board.c b/arch/microblaze/lib/board.c
index f7182f2..896e73a 100644
--- a/arch/microblaze/lib/board.c
+++ b/arch/microblaze/lib/board.c
@@ -46,9 +46,6 @@
 	serial_init,
 	console_init_f,
 	interrupts_init,
-#ifdef CONFIG_XILINX_TB_WATCHDOG
-	hw_watchdog_init,
-#endif
 	timer_init,
 	NULL,
 };
@@ -97,6 +94,9 @@
 
 	serial_initialize();
 
+#ifdef CONFIG_XILINX_TB_WATCHDOG
+	hw_watchdog_init();
+#endif
 	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 		WATCHDOG_RESET();
 		if ((*init_fnc_ptr) () != 0)