Update submodule v2.0 to latest Fri Jan 31 00:40:56 UTC 2020

PX4BuildBot · PX4BuildBot · commit c0e5e535bccf · 2020-01-31T00:40:56.000Z
- v2.0 in PX4/Firmware (1acb947): mavlink/c_library_v2@a62c139 - v2.0 current upstream: mavlink/c_library_v2@9db9d5f - Changes: mavlink/c_library_v2@a62c139...9db9d5f 9db9d5fa 2020-01-29 PX4BuildBot - autogenerated headers for rev https://github.com/mavlink/mavlink/tree/a8b73937ac9c620d215b902088d9f8de83b466d6 ad0bea12 2020-01-25 PX4BuildBot - autogenerated headers for rev https://github.com/mavlink/mavlink/tree/2b936139f9ff7f8764f2d8064cae59efee27e8c3
diff --git a/mavlink/include/mavlink/v2.0 b/mavlink/include/mavlink/v2.0
@@ -1 +1 @@
-Subproject commit a62c13922547033d8dd0e3ef9da9edcce909a05d
+Subproject commit 9db9d5fa673972365887d51876fda0f425140ed7
