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/el3_runtime/aarch64/context_mgmt.c b/lib/el3_runtime/aarch64/context_mgmt.c
index e38b34d..b69c7cc 100644
--- a/lib/el3_runtime/aarch64/context_mgmt.c
+++ b/lib/el3_runtime/aarch64/context_mgmt.c
@@ -457,7 +457,7 @@
 void __init cm_init(void)
 {
 	/*
-	 * The context management library has only global data to intialize, but
+	 * The context management library has only global data to initialize, but
 	 * that will be done when the BSS is zeroed out.
 	 */
 }