fdtdec.h: Remove gurads around fdtdec_resetup function

This function has not been conditionally compiled for some time, so
remove the incorrect guards around the declaration.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/fdtdec.h b/include/fdtdec.h
index 4b0b505..12355af 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -1169,7 +1169,6 @@
  */
 int fdtdec_board_setup(const void *fdt_blob);
 
-#if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
 /**
  * fdtdec_resetup()  - Set up the device tree again
  *
@@ -1188,7 +1187,6 @@
  * Return: 0 if OK, -ve on error
  */
 int fdtdec_resetup(int *rescan);
-#endif
 
 /**
  * Board-specific FDT initialization. Returns the address to a device tree blob.