An API version number was added in
qtbase/c2e0c126d8be8782201b2e4b5e47d9abe7a64df0 to prevent crashes
when changing QPA APIs. Using the macro will result in the correct
name being used depending on Qt version.

Task-number: QTBUG-46009
Change-Id: I0e88cc8aef790c9c4bac90425db95d6203243444
Reviewed-by: Jarkko Koivikko <jarkko.koivikko@code-q.fi>