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/brcm/board/stingray/driver/swreg.c b/plat/brcm/board/stingray/driver/swreg.c
index 2b7c53b..a5b5b9f 100644
--- a/plat/brcm/board/stingray/driver/swreg.c
+++ b/plat/brcm/board/stingray/driver/swreg.c
@@ -296,7 +296,7 @@
 	return ret;
 }
 
-/* Update SWREG firmware for all power doman for A2 chip */
+/* Update SWREG firmware for all power domain for A2 chip */
 int swreg_firmware_update(void)
 {
 	enum sw_reg reg_id;