Upgrade emulator to emu-master-dev build 7173252

Implement snapshots for the `VirtioVsockPipe` feature.

Bug: 174866369
Test: presubmit
Signed-off-by: Roman Kiryanov <rkir@google.com>
Change-Id: I005fd14d73119f80e68f8e1f3912b733fd6750a0
51 files changed