RDMA/amso1100: Use the dma state API instead of pci equivalents

The DMA API is preferred; no functional change.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/hw/amso1100/c2_provider.h

@@ -50,7 +50,7 @@
 
 struct c2_buf_list {
 	void *buf;
-	 DECLARE_PCI_UNMAP_ADDR(mapping)
+	DEFINE_DMA_UNMAP_ADDR(mapping);
 };