查看cpu占用率，QCM6490 SM6350等平台实际验证可用

push 到system/bin/下 mpstat -P ALL 3 Linux 5.10.110-qki-consolidate-android12-9-gbd7873aec79c-dirty (localhost) 11/01/22 _aarch64_ (8 CPU) 02:55:28 CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle 02:55:31 all 1.86 0.13 11.56 0.85 1.69 12.11 0.00 0.00 0.00 71.79 02:55:31 0 3.11 0.00 17.99 1.04 2.08 1.04 0.00 0.00 0.00 74.74 02:55:31 1 0.00 0.00 2.01 0.00 4.68 93.31 0