Fix WindowInputTests#testOverlapWindow failing (1/2)

The 'InputWindowInfo.isTrustedOverlay' function had been removed, we
have to indicate the trustedOverlay flag when fill input info to overlay
window.

Bug: 161789401
Bug: 158717144
Test: atest WindowInputTests
Change-Id: Idf17fd64c6a1399d04c51e3f0bd600dc4a84239a
Merged-In: Idf17fd64c6a1399d04c51e3f0bd600dc4a84239a