boards: amlogic: khadas-vim: Typo fixup

Khadas VIM is an Open Source DIY Box manufactured by Shenzhen Wesion NOT 'Tomato'

The fix was provided by Khadas Team member 'numbqq'.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/board/amlogic/khadas-vim/README b/board/amlogic/khadas-vim/README
index 0478eee..7eaca72 100644
--- a/board/amlogic/khadas-vim/README
+++ b/board/amlogic/khadas-vim/README
@@ -1,7 +1,7 @@
 U-Boot for Khadas VIM
 =======================
 
-Khadas VIM is an Open Source DIY Box manufactured by Shenzhen Tomato
+Khadas VIM is an Open Source DIY Box manufactured by Shenzhen Wesion
 Technology Co., Ltd with the following specifications:
 
  - Amlogic S905x ARM Cortex-A53 quad-core SoC @ 2GHz