st/glsl_to_tgsi: brown paper bag for the input offsets fix.

Oops, thanks compiler.

Signed-off-by: Dave Airlie <airlied@redhat.com>

src/mesa/state_tracker/st_glsl_to_tgsi.cpp

@@ -5582,7 +5582,7 @@ translate_tex_offset(struct st_translate *t,
       offset.Padding = 0;
       break;
    case PROGRAM_INPUT:
-      imm_src = t->inputs[t->inputMapping[imm_src.Index]];
+      imm_src = t->inputs[t->inputMapping[in_offset->index]];
       offset.File = imm_src.File;
       offset.Index = imm_src.Index;
       offset.SwizzleX = GET_SWZ(in_offset->swizzle, 0);