nir format conversions regression fix
@majanes reported a regression in my format conversion stuff yesterday. I reproduced the NIR format validation failure in the piglit test with INTEL_DEVID_OVERRIDE=hsw, and this fixes that.
@majanes reported a regression in my format conversion stuff yesterday. I reproduced the NIR format validation failure in the piglit test with INTEL_DEVID_OVERRIDE=hsw, and this fixes that.