SMC911x: unbreak PXA builds

Currently SMC911x driver is broken on ARM/PXA builds.
Unbreak such configurations.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/net/smc911x.h b/drivers/net/smc911x.h
index bf6240f..cc7d85b 100644
--- a/drivers/net/smc911x.h
+++ b/drivers/net/smc911x.h
@@ -50,6 +50,10 @@
 #define SMC_DYNAMIC_BUS_CONFIG
 #endif
 
+#ifdef SMC_USE_PXA_DMA
+#define SMC_USE_DMA
+#endif
+
 /* store this information for the driver.. */
 struct smc911x_local {
 	/*
@@ -196,8 +200,6 @@
 
 
 #ifdef SMC_USE_PXA_DMA
-#define SMC_USE_DMA
-
 /*
  * Define the request and free functions
  * These are unfortunately architecture specific as no generic allocation