i915g: fill out CAPs for indirect addressing

src/gallium/drivers/i915/i915_screen.c

@@ -178,6 +178,11 @@ i915_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_sha
          return 0;
       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
          return 0;
+      case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
+      case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
+      case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
+      case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
+         return 1;
       default:
          assert(0);
          return 0;