Replace CONFIG_RELOC_FIXUP_WORKS by CONFIG_NEEDS_MANUAL_RELOC

By now, the majority of architectures have working relocation
support, so the few remaining architectures have become exceptions.
To make this more obvious, we make working relocation now the default
case, and flag the remaining cases with CONFIG_NEEDS_MANUAL_RELOC.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Tested-by: Heiko Schocher <hs@denx.de>
Tested-by: Reinhard Meyer <u-boot@emk-elektronik.de>
diff --git a/common/serial.c b/common/serial.c
index c3323ea..051ae4e 100644
--- a/common/serial.c
+++ b/common/serial.c
@@ -99,7 +99,7 @@
 
 int serial_register (struct serial_device *dev)
 {
-#ifndef CONFIG_RELOC_FIXUP_WORKS
+#ifdef CONFIG_NEEDS_MANUAL_RELOC
 	dev->init += gd->reloc_off;
 	dev->setbrg += gd->reloc_off;
 	dev->getc += gd->reloc_off;