Modify condition for scale definition in sdpa_micro.cl

Author: clee30

src/plugins/intel_gpu/src/graph/impls/ocl_v2/sdpa_micro.cl

@@ -544,7 +544,7 @@ KERNEL(micro_sdpa)(OPTIONAL_SHAPE_INFO_ARG
         #define greater_than(offset_k, offset_q) (offset_k > offset_q)
     #endif
 
-    #if IS_PAGED_ATTENTION && IS_PREFILL == 1
+    #if IS_PAGED_ATTENTION && HAS_SINK_INPUT
     #define scale(x) ((x)* scale)
             tile_elementwise(S_tile, scale);
     #endif