[cherry-pick] Fix build error caused by flatbuffer if the target is tiny_publish, and fix the missing of the attr name of the output scale (#4356)

* [LITE][XPU] 1. Add sequence_unpad kernel for XPU; 2. Bugfix in sequence_unpad kernel for x86, as InferShapeImpl() is now empty in lite/operators/sequence_unpad_op.cc; 3. Refine TargetWrapperXPU; (#4237)

* [Core] Fix the missing of the attr name of the output scale (#4334)

* [NPU] Fix build error caused by flatbuffer if the target is tiny_publish (#4340)
test=develop
Co-authored-by: NCwndmiao <miaotianxiang@baidu.com>

[RKNPU] Adapting to the changing of the quantization parameters, and supporting the fully quantized mobilenetv1 model (#4046)

* [RKNPU] Adapting to the changing of the quantization parameters, and supporting the fully quantized mobilenetv1 model
test=develop

* [Doc] Update the doc for apu and rknpu
test=develop

* reduce .so size. test=develop

* compile all targets when LITE_ON_TINY_PUBLISH=OFF

* unordered_map is more convenient when key is customized class

* test=develop