fs: btrfs: Add more checksum algorithms

This mostly crossports crypto/hash.[ch] from btrfs-progs.

The differences are:
- No blake2 support
  No blake2 related library in U-Boot yet.

- Use uboot xxhash/sha256 directly
  No need to implement the code as U-Boot has already provided the
  interface.

This adds the support for the following csums:
- SHA256
- XXHASH

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/btrfs/btrfs.c b/fs/btrfs/btrfs.c
index 9f2888bab3b..d5a87c175c5 100644
--- a/fs/btrfs/btrfs.c
+++ b/fs/btrfs/btrfs.c
@@ -5,11 +5,12 @@
  * 2017 Marek Behun, CZ.NIC, marek.behun@nic.cz
  */
 
-#include "btrfs.h"
 #include <config.h>
 #include <malloc.h>
 #include <uuid.h>
 #include <linux/time.h>
+#include "btrfs.h"
+#include "crypto/hash.h"
 
 struct btrfs_info btrfs_info;