EspSoftwareSerial 5.3.0 version update (#6526)

dok-net · d-a-v · commit efb8aaa5fb6e · 2019-09-16T15:49:19.000+02:00
diff --git a/libraries/SoftwareSerial b/libraries/SoftwareSerial
@@ -1 +1 @@
-Subproject commit dd9d2326f85a22ca96ef5922df044884a2f3b529
+Subproject commit 776d49b2f570b93fe88ad7a082519b4fb56be817
