make -R and -D not affect qmake

this was meant to be part of d8be8110

, as qmake is obviously also a
bootstrapped tool.

-I/-L/-F/-l/-fw already had no effect on qmake.

Change-Id: I5095742ef5401558cc4432e7a774d0851d417bb0
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>