intel: vs output count should be 2

VUE header and position.
diff --git a/icd/intel/shader.c b/icd/intel/shader.c
index c026a84..b82982c 100644
--- a/icd/intel/shader.c
+++ b/icd/intel/shader.c
@@ -51,7 +51,7 @@
     case 'v':
         sh->uses |= INTEL_SHADER_USE_VID;
         sh->in_count = 1;
-        sh->out_count = 1;
+        sh->out_count = 2;
         break;
     case 'w':
         sh->out_count = 1;