Update Google Test to latest revision.

Fixes (suppresses) Visual Studio 2017 warning (error) about std::tr1.

Change-Id: I3319dfa77d00e81e48ef7ef0ab884e131e9a039e
Reviewed-on: https://swiftshader-review.googlesource.com/15048
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>

third_party/googletest

diff --git a/third_party/googletest b/third_party/googletest
index ecd5308..0fe9660 160000
--- a/third_party/googletest
+++ b/third_party/googletest
@@ -1 +1 @@
-Subproject commit ecd530865cefdfa7dea58e84f6aa1b548950363d
+Subproject commit 0fe96607d85cf3a25ac40da369db62bbee2939a5