common/board_f: drop ifdefs around header includes

Drop the remaining ifdef around spl.h include.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
diff --git a/common/board_f.c b/common/board_f.c
index 82b5828..5f17111 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -36,9 +36,7 @@
 #include <post.h>
 #include <relocate.h>
 #include <serial.h>
-#ifdef CONFIG_SPL
 #include <spl.h>
-#endif
 #include <status_led.h>
 #include <sysreset.h>
 #include <timer.h>