hash: Plumb crc8 into the hash functions

Add an entry for crc8, with watchdog handling.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
diff --git a/common/hash.c b/common/hash.c
index db6925d..8dd9da8 100644
--- a/common/hash.c
+++ b/common/hash.c
@@ -304,6 +304,14 @@
 		.hash_update	= hash_update_crc16_ccitt,
 		.hash_finish	= hash_finish_crc16_ccitt,
 	},
+#if CONFIG_IS_ENABLED(CRC8) && IS_ENABLED(CONFIG_HASH_CRC8)
+	{
+		.name		= "crc8",
+		.digest_size	= 1,
+		.chunk_size	= CHUNKSZ_CRC32,
+		.hash_func_ws	= crc8_wd_buf,
+	},
+#endif
 #if CONFIG_IS_ENABLED(CRC32)
 	{
 		.name		= "crc32",