Update linux5.15.md

linux5.15.md

@@ -1,26 +1,2 @@
 # 切换5.15来编译rockchip rk356x设备
-### 第一方法：
-1. 将源码下载 `git clone https://github.com/DHDAXCW/lede-rockchip`
-2. 执行命令来切换6.0内核`sed -i 's/5.4/5.15/g' ./target/linux/rockchip/Makefile`
-3. 删掉文件 
-```
-rm -rf package/kernel/rtl8821cu
-rm -rf target/linux/rockchip/files/arch/arm64/boot/dts/rockchip/rk356x.dtsi
-rm -rf target/linux/rockchip/files/arch/arm64/boot/dts/rockchip/rk3568.dtsi
-```
-4. 然后参考下载源代码，更新 feeds 并选择配置等等，即可编译你需要的固件了
-
-### 第二方法：
-1. 从5.4编译产生后，切换5.15需要清理编译留下的文件:
-```bash
-rm -rf package/kernel/rtl8821cu
-rm -rf target/linux/rockchip/files/arch/arm64/boot/dts/rockchip/rk356x.dtsi
-rm -rf target/linux/rockchip/files/arch/arm64/boot/dts/rockchip/rk3568.dtsi
-rm -rf ./tmp && rm -rf .config
-make clean
-```
-4. 然后参考选择配置等等，即可编译你需要的固件了
-```bash
-make menuconfig
-make -j$(($(nproc) + 1))
-```
+下版本更新5.15