DO NOT MERGE:CTS-VERIFIER - Clipboard Preview test is Failing

Copy button is not visible in small screen devices for this
particular testcase.

Solution: Making the layout scrollable by changing the
cts/apps/CtsVerifier/res/layout/clipboard_preview.xml
file , the Copy button is visible by scrolling down.
Bug: 349280748
original change:
https://android-review.googlesource.com/c/platform/cts/+/2542870

Test: Build CTS-VERIFIER
Test: FEATURES>Clipboard Preview Test>Fail(Complete test UI is not visible)
Change-Id: Idad4da30b5100fab787b73286ae974d7d10c5efd