dt-bindings: vendor-prefixes: Add prefix for SINO WEALTH Eletronics Ltd.

Add a vendor prefix entry for SINO WEALTH Eletronics Ltd.
(http://www.sinowealth.com

).

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220406172956.3953-2-wens@kernel.org