goldfish: fix >> 32 warning

We should be checking for a 64bit platform not 64bit DMA address types in
the case of Goldfish. The Goldfish virtual platform is either 32/32 or
64/64.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

include/linux/goldfish.h

@@ -7,7 +7,7 @@ static inline void gf_write64(unsigned long data,
 		void __iomem *portl, void __iomem *porth)
 {
 	writel((u32)data, portl);
-#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
+#ifdef CONFIG_64BIT
 	writel(data>>32, porth);
 #endif
 }