glsl_to_tgsi: Use {Num}UniformBlocks instead of {Num}BufferInterfaceBlocks

The latter holds both UBOs and SSBOs, but here we only want UBOs.

Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

src/mesa/state_tracker/st_glsl_to_tgsi.cpp

@@ -5388,10 +5388,10 @@ st_translate_program(
    }
 
    if (program->shader) {
-      unsigned num_ubos = program->shader->NumBufferInterfaceBlocks;
+      unsigned num_ubos = program->shader->NumUniformBlocks;
 
       for (i = 0; i < num_ubos; i++) {
-         unsigned size = program->shader->BufferInterfaceBlocks[i].UniformBufferSize;
+         unsigned size = program->shader->UniformBlocks[i]->UniformBufferSize;
          unsigned num_const_vecs = (size + 15) / 16;
          unsigned first, last;
          assert(num_const_vecs > 0);