Fix bssl_shim build in MSVC.

MSVC can't initialiaze OPENSSL_timeval inline.

Change-Id: Ibb9f4d0666c87e690d247d713d5ff2e05a1aa257
Reviewed-on: https://boringssl-review.googlesource.com/4251
Reviewed-by: Adam Langley <agl@google.com>
1 file changed