cpu: Drop print_ implementation from non-romcc boards

Because we had no stack on romcc boards, we had a separate, not as
powerful clone of printk: print_*. Back in the day, like more than
half a decade ago, we migrated a lot of boards to printk, but we never
cleaned up the existing code to be consistent. instead, we worked around
the problem with a very messy console.h (nowadays the mess is hidden in
romstage_console.c and early_print.h)
This patch cleans up the cpu code to use printk() on all non-ROMCC
boards.

Change-Id: I233c53300f9a74bce4b828fc4074501a77f7b593
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/8114
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)

src/include/cpu/x86/bist.h

@@ -4,14 +4,8 @@
 static void report_bist_failure(u32 bist)
 {
 	if (bist != 0) {
-#if CONFIG_CACHE_AS_RAM
                 printk(BIOS_EMERG, "BIST failed: %08x", bist);
-#else
-		print_emerg("BIST failed: ");
-		print_emerg_hex32(bist);
-#endif
 		die("\n");
-
 	}
 }