microblaze: Move architecture to use generic board init

Compile code with -fPIC to get GOT. Do not build SPL
with fPIC because it increasing SPL size for nothing.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/common/board_r.c b/common/board_r.c
index f7a3b55..907b33c 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -813,7 +813,7 @@
 #if defined(CONFIG_ARM)
 	initr_enable_interrupts,
 #endif
-#ifdef CONFIG_X86
+#if defined(CONFIG_X86) || defined(CONFIG_MICROBLAZE)
 	timer_init,		/* initialize timer */
 #endif
 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)