[TULIP]: Use CONFIG_SPARC consistently in ifdef tests.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c
index c82befa..a0eda56 100644
--- a/drivers/net/tulip/de2104x.c
+++ b/drivers/net/tulip/de2104x.c
@@ -63,7 +63,7 @@
 
 /* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */
 #if defined(__alpha__) || defined(__arm__) || defined(__hppa__) \
-        || defined(__sparc__) || defined(__ia64__) \
+        || defined(CONFIG_SPARC) || defined(__ia64__) \
         || defined(__sh__) || defined(__mips__)
 static int rx_copybreak = 1518;
 #else