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/drivers/arm/gic/v3/gic600_multichip.c b/drivers/arm/gic/v3/gic600_multichip.c
index f26e056..7f0735d 100644
--- a/drivers/arm/gic/v3/gic600_multichip.c
+++ b/drivers/arm/gic/v3/gic600_multichip.c
@@ -322,7 +322,7 @@
 }
 
 /*******************************************************************************
- * Intialize GIC-600 and GIC-700 Multichip operation.
+ * Initialize GIC-600 and GIC-700 Multichip operation.
  ******************************************************************************/
 void gic600_multichip_init(struct gic600_multichip_data *multichip_data)
 {