qeglfsscreen: Fix ordering in initializer to match class order.

Fixes a compile warning.
qeglfscontext: Build on Qt 5.3

5aaec4800066801f069dfb4606c5d9551a9b8110 in qtbase removed the eglApi parameter,
as it wasn't used anymore.
Merge pull request #28 from rburchell/master

Build on Qt 5.3 and up.