Update platformio_orig.ini

Re-set platformio-espressif32 to v3.1.0, using commit #abc2bb9 (including bugfix T-Beam)

platformio_orig.ini

@@ -57,7 +57,8 @@ extra_scripts = pre:build.py
 otakeyfile = ota.conf
 lorakeyfile = loraconf.h
 lmicconfigfile = lmic_config.h
-platform_espressif32 = espressif32@3.0.0
+;platform_espressif32 = espressif32@3.0.0
+platform_espressif32 = https://github.com/platformio/platform-espressif32.git#abc2bb9
 monitor_speed = 115200
 upload_speed = 115200 ; set by build.py and taken from hal file
 display_library = ; set by build.py and taken from hal file