优化rk3568 5.10内核启动时间 · Pull Request !384 · OpenHarmony/kernel_linux_config

[#优化rk3568 5.10内核启动时间](https://gitee.com/openharmony/kernel_linux_config/issues/IA8BMK)

原因（目的、解决的问题等）
优化内核启动效率，缩短init启动的时间。

描述（做了什么，变更了什么）
打开CONFIG_INITRD_ASYNC，开机时启用性能模式，提升内核启动速度，加快init进程的启动时间。

测试用例（新增、改动、可能影响的功能）
Init进程的启动时间对比数据。
原始数据 4组
```
[    3.759847] rkisp-vir0: Async subdev notifier completed␍␊
[    3.774944] Freeing unused kernel memory: 1664K␍␊
[    3.820624] Run /init as init process␍␊
[    3.831803] [pid=1][Init][INFO][init_firststage.c:167]Start init first stage.␍␊
[    3.831923] [pid=1][Init][INFO][device.c:33]mount dev tmpfs␍␊
[    3.843741] rk-pcie 3c0800000.pcie: PCIe Linking... LTSSM is 0x0␍␊
```

```
[    3.745258] rkisp-vir0: Async subdev notifier completed␍␊
[    3.760296] Freeing unused kernel memory: 1664K␍␊
[    3.789401] Run /init as init process␍␊
[    3.800726] [pid=1][Init][INFO][init_firststage.c:167]Start init first stage.␍␊
[    3.800847] [pid=1][Init][INFO][device.c:33]mount dev tmpfs␍␊
[    3.892380] rk-pcie 3c0800000.pcie: PCIe Linking... LTSSM is 0x0␍
```

```
[    3.672831] rkisp-vir0: Async subdev notifier completed␍␊
[    3.686385] Freeing unused kernel memory: 1664K␍␊
[    3.703482] Run /init as init process␍␊
[    3.714839] [pid=1][Init][INFO][init_firststage.c:167]Start init first stage.␍␊
[    3.714962] [pid=1][Init][INFO][device.c:33]mount dev tmpfs␍␊
[    3.818754] [pid=1][ueventd][WARNING][ueventd.c:197]Not found device for partitionName (null) ␍␊
[    3.818939] [pid=1][ueventd][INFO][ueventd.c:192]Handle required partitionName eng_system␍␊
```

```
[    3.675645] rkisp-vir0: Async subdev notifier completed␍␊
[    3.689342] Freeing unused kernel memory: 1664K␍␊
[    3.743447] Run /init as init process␍␊
[    3.754591] [pid=1][Init][INFO][init_firststage.c:167]Start init first stage.␍␊
[    3.754712] [pid=1][Init][INFO][device.c:33]mount dev tmpfs␍␊
```

优化后：

```
[    3.451893] rkisp-vir0: Async subdev notifier completed␍␊
[    3.455319] Freeing unused kernel memory: 1664K␍␊
[    3.477415] Run /init as init process␍␊
[    3.480069] [pid=1][Init][INFO][init_firststage.c:167]Start init first stage.␍␊
[    3.480101] [pid=1][Init][INFO][device.c:33]mount dev tmpfs␍␊
[    3.535015] [pid=1][ueventd][WARNING][ueventd.c:197]Not found device for partitionName (null) ␍␊
```

```
[    3.457641] rkisp-vir0: Async subdev notifier completed␍␊
[    3.461535] Freeing unused kernel memory: 1664K␍␊
[    3.476785] Run /init as init process␍␊
[    3.479403] [pid=1][Init][INFO][init_firststage.c:167]Start init first stage.␍␊
[    3.479435] [pid=1][Init][INFO][device.c:33]mount dev tmpfs␍␊
[    3.533976] [pid=1][ueventd][WARNING][ueventd.c:197]Not found
```

```
[    3.458386] rkisp-vir0: Async subdev notifier completed
[    3.462260] Freeing unused kernel memory: 1664K
[    3.477663] Run /init as init process
[    3.480314] [pid=1][Init][INFO][init_firststage.c:167]Start init first stage.
[    3.480346] [pid=1][Init][INFO][device.c:33]mount dev tmpfs
[    3.534763] [pid=1][ueventd][WARNING][ueventd.c:197]Not found device for partitionName (null) 
[    3.534927] [pid=1][ueventd][INFO][ueventd.c:192]Handle required partitionName eng_system
```

```
[    3.443606] rkisp-vir0: Async subdev notifier completed
[    3.447521] Freeing unused kernel memory: 1664K
[    3.459580] Run /init as init process
[    3.462251] [pid=1][Init][INFO][init_firststage.c:167]Start init first stage.
[    3.462296] [pid=1][Init][INFO][device.c:33]mount dev tmpfs
[    3.517236] [pid=1][ueventd][WARNING][ueventd.c:197]Not found device for partitionName (null) 
```

优化约200ms

类型	指派人员	状态
审查	gail 朱佳鑫已审查通过 lijiawei	已完成 (1/1人)
测试	openharmony_ci 已测试通过	已完成 (1/1人)

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