TfLiteMotionPredictor_test: fix initialization order warnings

The mismatch in order between the declaration and the initializer lists
was causing the following warning:

    warning: ISO C++ requires field designators to be specified in
    declaration order; field 'orientation' will be initialized after
    field 'tilt' [-Wreorder-init-list]

Bug: 245989146
Test: atest libinput_tests
Flag: TEST_ONLY
Change-Id: Ic49c54df27b454c3593064de4778bcde7899f230