qt6_multimedia: fix build for x86_gcc2 arch
qt6_multimedia: fix build for x86_gcc2 arch

Begasus/haikuports,haikuports/haikuports,Begasus/haikuports,haikuports/haikuports,Begasus/haikuports,Begasus/haikuports,Begasus/haikuports,haikuports/haikuports,haikuports/haikuports,haikuports/haikuports