fs/fs.c: add symbolic link case to fs_ls_generic()

Adds an 'else if' statement inside the loop to check for symbolic links.

Signed-off-by: Joao Marcos Costa <joaomarcos.costa@bootlin.com>
diff --git a/fs/fs.c b/fs/fs.c
index 5b31a36..17e4bc3 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -59,6 +59,9 @@
 		if (dent->type == FS_DT_DIR) {
 			printf("            %s/\n", dent->name);
 			ndirs++;
+		} else if (dent->type == FS_DT_LNK) {
+			printf("    <SYM>   %s\n", dent->name);
+			nfiles++;
 		} else {
 			printf(" %8lld   %s\n", dent->size, dent->name);
 			nfiles++;