Fix ShimDevice::allocate, wrong operand used for output role. Bug: 210970637 Test: cts Change-Id: I76d5b89e2d95d4e775ca544c54ec5100e404ba47 Merged-In: I76d5b89e2d95d4e775ca544c54ec5100e404ba47 (cherry picked from commit b5c6b2dca691228341b20e2ac39c1c7e975d954e)