The company Zyxel rebranded some years ago.
Currently the casing is according to the old branding even
for newer devices which already use the new branding.
This commit aligns the casing of Zyxel everywhere.
Signed-off-by: Goetz Goerisch <ggoerisch@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/15652
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
