Label emulator clipboards with `SUPPRESS_CLIPBOARD_OVERLAY`

Emulator QA found this popup too noisy
to be useful.

Bug: 222604628
Test: boot the emulator, copy on the host
Test: check if there is no popup in the guest
Change-Id: I46323732a64202dabdd3a43bf17df7e7f3f9dd9c
Merged-In: I46323732a64202dabdd3a43bf17df7e7f3f9dd9c
Signed-off-by: Roman Kiryanov <rkir@google.com>