The board has been redesigned due to previous hardware bugs
(with other reasons maybe).
Changes in new board:
- Added a gpio beeper
- Added a Atmel i2c eeprom
- Added a Atmel i2c ECC accelerator
- Added a Philips RTC module
- Added two RS485
- Removed WPS button
- Replaced USB3 port with M.2 B-key for LTE modules
Also replace broken 'phy*tpt' trigger with uci netdev configuration.
Keeping compatibility for old version is not necessary here as only
few samples were sent to those interested in it.
Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>