sunxi: Fix typos of spelling Allwinner

Signed-off-by: Priit Laes <plaes@plaes.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
diff --git a/board/sunxi/README.sunxi64 b/board/sunxi/README.sunxi64
index df1dbc8..bba2e01 100644
--- a/board/sunxi/README.sunxi64
+++ b/board/sunxi/README.sunxi64
@@ -130,7 +130,7 @@
 
 (Legacy) boot0 method
 ---------------------
-boot0 is Allwiner's secondary program loader and it can be used as some kind
+boot0 is Allwinner's secondary program loader and it can be used as some kind
 of SPL replacement to get U-Boot up and running from an microSD card.
 For some time using boot0 was the only option to get the Pine64 booted.
 With working DRAM init code in U-Boot's SPL this is no longer necessary,