[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/fs/befs/io.h b/src/kernel/linux/v4.19/fs/befs/io.h
new file mode 100644
index 0000000..9b3e196
--- /dev/null
+++ b/src/kernel/linux/v4.19/fs/befs/io.h
@@ -0,0 +1,6 @@
+/*
+ * io.h
+ */
+
+struct buffer_head *befs_bread_iaddr(struct super_block *sb,
+				     befs_inode_addr iaddr);