mediatek: add Comfast CF-E395AX support by adding an alternative model name

mediatek: add Comfast CF-E395AX support by adding an alternative model name

both these devices share the board and same config, just different model number

Install instructions are the same as the CF-E393AX commit - https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=d8f4453bf2de9fd9baf3d660ed12e0797ff2cfdb

Signed-off-by: David Bentham <db260179@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/16389
Signed-off-by: John Crispin <john@phrozen.org>
(cherry picked from commit 794291bbdf26ad2be7581fc0c921e4d820937c79)