bloblist: Demote not finding a bloblist to a debug

The message about not finding a bloblist will quite often be seen at
least once, and is non-fatal. Demote this to a log_debug message from a
log_warning message.

Reviewed-by: Raymond Mao <raymondmaoca@gmail.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Tom Rini <trini@konsulko.com>

common/bloblist.c

@@ -613,8 +613,8 @@ int bloblist_init(void)
 			ret = bloblist_check(addr, size);
 
 		if (ret)
-			log_warning("Bloblist at %lx not found (err=%d)\n",
-				    addr, ret);
+			log_debug("Bloblist at %lx not found (err=%d)\n",
+				  addr, ret);
 		else
 			/* Get the real size */
 			size = gd->bloblist->total_size;