EspSoftwareSerial 6.10.0: override keyword for recent Print::availableForWrite() addition (#7710)

dok-net · web-flow · commit 5ae3efb8230e · 2020-11-15T10:13:34.000-08:00
* Strict C++ use of "override" update for Print::availableForWrite addition, and ESP32 GPIO fix.

* EspSoftwareSerial: minor version update to 6.10.0
diff --git a/libraries/SoftwareSerial b/libraries/SoftwareSerial
@@ -1 +1 @@
-Subproject commit 4c08ee8d2cb7b5b27eb4f86797694cbac94aa5c9
+Subproject commit 6d520c259cad4457ccdbee362c16f7fa3b504b06
