python3-protobuf, python-protobuf: 3.6.1 -> 3.8.0

The patch for Python 3.7 compatibility is already in 3.8.0.

Signed-off-by: Pascal Bach <pascal.bach@siemens.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python/python3-protobuf_3.8.0.bb

@@ -0,0 +1,10 @@
+inherit setuptools3
+require python-protobuf.inc
+
+DEPENDS += "protobuf"
+DISTUTILS_BUILD_ARGS += "--cpp_implementation"
+DISTUTILS_INSTALL_ARGS += "--cpp_implementation"
+
+do_compile_prepend_class-native () {
+    export KOKORO_BUILD_NUMBER="1"
+}