zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/fs/befs/io.h b/ap/os/linux/linux-3.4.x/fs/befs/io.h
new file mode 100644
index 0000000..9b78266
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/fs/befs/io.h
@@ -0,0 +1,9 @@
+/*
+ * io.h
+ */
+
+struct buffer_head *befs_bread_iaddr(struct super_block *sb,
+				     befs_inode_addr iaddr);
+
+struct buffer_head *befs_bread(struct super_block *sb, befs_blocknr_t block);
+