TTGO T-BEAM corrections

[khancyr]

Hello,

This PR intend to add the TTGO T-BEAM v1.1 with oled on 433Mhz configuration. It seems working : https://tinygs.com/station/khancyr_gs@1737718812 . I haven't received message yet but the LORA pins aren't changed.

I have also correct the other T-BEAM pinout according to the documentation (https://github.com/Xinyuan-LilyGO/LilyGo-LoRa-Series/blob/master/examples/ArduinoLoRa/LoRaReceiver/utilities.h), I will test on a 868Mhz v0.7 that I got. And I rename the board to make it cleared which to select.
Ideally, we should write somewhere that the 868-900Mhz config are only for SX1278/76 and not SX1262. The SX1262 don't exist for 433Mhz , see https://github.com/Xinyuan-LilyGO/LilyGo-LoRa-Series

[TerrenceHenry]

Any movement on this PR?
I have a TTGO T-Beam V1.1 433MHz with OLED.

[n-connect]

Hello,

Applied the changes manually on release v2105260, running a T-Beam v1.1 433Mhz with OLED. Firmware works, sat communication works.

@khancyr, thank you for your work! I have same board v1.1 with 868Mhz (915Mhz), is there any additional changes would be necessary for those? Can you show me the right direction?