[PARISC] fix lasi_82596 build

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

drivers/net/lasi_82596.c

@@ -83,6 +83,7 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/bitops.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/io.h>
 #include <asm/pgtable.h>