Change small vector size (PaddlePaddle#42202)

* change samll vector size

* Update type_defs.h

Author: chenwhql

paddle/phi/core/type_defs.h

@@ -38,8 +38,8 @@ using ArgumentMappingFn =
 using InferMetaFn = void (*)(InferMetaContext* ctx);
 
 // Global SmallVector size setting
-constexpr size_t kInputSmallVectorSize = 10U;
-constexpr size_t kAttrSmallVectorSize = 10U;
-constexpr size_t kOutputSmallVectorSize = 5U;
+constexpr size_t kInputSmallVectorSize = 15U;
+constexpr size_t kAttrSmallVectorSize = 15U;
+constexpr size_t kOutputSmallVectorSize = 15U;
 
 }  // namespace phi