RELOCATABLE_RAMSTAGE: Fix weak symbols with ramstage_cache

We had NULL reference with cache_loaded_ramstage() if
CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM was not set so boot never
proceeded to ramstage.

Cache implementation outside CBMEM provides means for platform-specific
location so there is no need of weak attributes here.

Change-Id: I1eb1a713896395c424fde23252c374f9065fe74d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7954
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc
index b7daea1..327c9f2 100644
--- a/src/lib/Makefile.inc
+++ b/src/lib/Makefile.inc
@@ -86,7 +86,7 @@
 romstage-$(CONFIG_REG_SCRIPT) += reg_script.c
 ramstage-$(CONFIG_REG_SCRIPT) += reg_script.c
 
-romstage-$(CONFIG_CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM) += ramstage_cache.c
+romstage-$(CONFIG_RELOCATABLE_RAMSTAGE) += ramstage_cache.c
 
 smm-y += cbfs.c cbfs_core.c memcmp.c
 smm-$(CONFIG_COMPILER_GCC) += gcc.c