radeonsi: fix tess levels coming as scalar arrays from SPIR-V
This fixes: KHR-GL45.gl_spirv.spirv_modules_positive_test
Fixes: 75ce078a "radeonsi: enable NIR by default and document GL 4.6 support"
This fixes: KHR-GL45.gl_spirv.spirv_modules_positive_test
Fixes: 75ce078a "radeonsi: enable NIR by default and document GL 4.6 support"