ipsec_manager: Enable SonicWall compatibility

Use the new upstream flag to accept frames from SonicWall.

BUG=chromium:334620
TEST=Authenticate to SonicWall

Change-Id: I19d277f66cd105e1e5aaaaaef35db24aabfaa6a5
Reviewed-on: https://chromium-review.googlesource.com/195408
Reviewed-by: Ben Chan <benchan@chromium.org>
Tested-by: Paul Stewart <pstew@chromium.org>
Commit-Queue: Paul Stewart <pstew@chromium.org>
2 files changed