fix(tree): correct some typos

found using codespell (https://github.com/codespell-project/codespell).

Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: I1bfa797e3460adddeefa916bb68e22beddaf6373
diff --git a/lib/debugfs/debugfs_smc.c b/lib/debugfs/debugfs_smc.c
index 400c166..13ced3d 100644
--- a/lib/debugfs/debugfs_smc.c
+++ b/lib/debugfs/debugfs_smc.c
@@ -54,7 +54,7 @@
 } parms;
 
 /* debugfs_access_lock protects shared buffer and internal */
-/* FS functions from concurrent acccesses.                 */
+/* FS functions from concurrent accesses.                 */
 static spinlock_t debugfs_access_lock;
 
 static bool debugfs_initialized;