fs: Quieten down the filesystems more

When looking for a filesystem on a partition we should do so quietly. At
present if the filesystem is very small (e.g. 512 bytes) we get a host of
messages.

Update these to only show when debugging.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index c80f8e8..3f0d9f1 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0+
 #include <common.h>
 #include <fs_internal.h>
+#include <log.h>
 #include <uuid.h>
 #include <memalign.h>
 #include "kernel-shared/btrfs_tree.h"
@@ -910,9 +911,9 @@
 
 	if (round_up(BTRFS_SUPER_INFO_SIZE + BTRFS_SUPER_INFO_OFFSET,
 		     desc->blksz) > (part->size << desc->log2blksz)) {
-		error("superblock end %u is larger than device size " LBAFU,
-				BTRFS_SUPER_INFO_SIZE + BTRFS_SUPER_INFO_OFFSET,
-				part->size << desc->log2blksz);
+		log_debug("superblock end %u is larger than device size " LBAFU,
+			  BTRFS_SUPER_INFO_SIZE + BTRFS_SUPER_INFO_OFFSET,
+			  part->size << desc->log2blksz);
 		return -EINVAL;
 	}
 
diff --git a/fs/ext4/ext4_common.c b/fs/ext4/ext4_common.c
index d49ba4a..1185cb2 100644
--- a/fs/ext4/ext4_common.c
+++ b/fs/ext4/ext4_common.c
@@ -2415,7 +2415,7 @@
 
 	return 1;
 fail:
-	printf("Failed to mount ext2 filesystem...\n");
+	log_debug("Failed to mount ext2 filesystem...\n");
 fail_noerr:
 	free(data);
 	ext4fs_root = NULL;
diff --git a/fs/fs_internal.c b/fs/fs_internal.c
index ae1cb85..111f91b 100644
--- a/fs/fs_internal.c
+++ b/fs/fs_internal.c
@@ -29,8 +29,7 @@
 	/* Check partition boundaries */
 	if ((sector + ((byte_offset + byte_len - 1) >> log2blksz))
 	    >= partition->size) {
-		log_err("%s read outside partition " LBAFU "\n", __func__,
-			sector);
+		log_debug("read outside partition " LBAFU "\n", sector);
 		return 0;
 	}