auxiliary/vl: use the correct screen index
auxiliary/vl: use the correct screen index

Inspired (copied) from Marek's commit for egl/x11
commit 0b56e23e7f3(egl/dri2: use the correct screen index)

v2: Fix copy/pasta errors.

Cc: 10.6 <59f39c0db42d4479a46b02d4d2bc11120e37bb44@lists.freedesktop.org>
Signed-off-by: Emil Velikov <4c996f2f093ddd0585a556460b4cc3ba555546ef@gmail.com>
Reviewed-by: Marek Olšák <8c7344a1abdb103e79ecfd488098373070c3c70e@amd.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler