drivers/misc: Move conditional compilation to Makefile

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/Sandpoint8245.h b/include/configs/Sandpoint8245.h
index a08451e..5685314 100644
--- a/include/configs/Sandpoint8245.h
+++ b/include/configs/Sandpoint8245.h
@@ -214,7 +214,7 @@
 /*
  * NS87308 Configuration
  */
-#define CFG_NS87308			/* Nat Semi super-io controller on ISA bus */
+#define CONFIG_NS87308			/* Nat Semi super-io controller on ISA bus */
 
 #define CFG_NS87308_BADDR_10	1