Introduce generic pre-relocation board_f.c

This file handles common pre-relocation init for boards which use
the generic framework.

It starts up the console, DRAM, performs relocation and then jumps
to post-relocation init.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Wolfgang Denk <wd@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
diff --git a/arch/x86/lib/board.c b/arch/x86/lib/board.c
index 2441a66..555301a 100644
--- a/arch/x86/lib/board.c
+++ b/arch/x86/lib/board.c
@@ -219,7 +219,7 @@
 
 void board_init_f(ulong boot_flags)
 {
-	gd->fdt_blob = gd->arch.new_fdt = NULL;
+	gd->fdt_blob = gd->new_fdt = NULL;
 	gd->flags = boot_flags;
 
 	do_init_loop(init_sequence_f);