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/plat/rockchip/rk3288/drivers/soc/soc.c b/plat/rockchip/rk3288/drivers/soc/soc.c
index 36f410b..2316fbe 100644
--- a/plat/rockchip/rk3288/drivers/soc/soc.c
+++ b/plat/rockchip/rk3288/drivers/soc/soc.c
@@ -216,7 +216,7 @@
 
 	/*
 	 * Maybe the HW needs some times to reset the system,
-	 * so we do not hope the core to excute valid codes.
+	 * so we do not hope the core to execute valid codes.
 	 */
 	while (1)
 		;