A true mainline Linux Kernel for the Pinebook Pro

[mara]

hi @tsys and cc: @spikerguy

i have the following build error with 5.8-rc1 branch:

  CC      drivers/soc/rockchip/rockchip_pm_config.o
drivers/soc/rockchip/rockchip_pm_config.c: In function ‘rockchip_pm_virt_pwroff_prepare’:
drivers/soc/rockchip/rockchip_pm_config.c:102:10: error: implicit declaration of function ‘disable_nonboot_cpus’ [-Werror=implicit-function-declaration]
  102 |  error = disable_nonboot_cpus();
      |          ^~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
make[6]: *** [scripts/Makefile.build:281: drivers/soc/rockchip/rockchip_pm_config.o] Error 1
make[5]: *** [scripts/Makefile.build:497: drivers/soc/rockchip] Error 2
make[4]: *** [scripts/Makefile.build:497: drivers/soc] Error 2
make[4]: *** Waiting for unfinished jobs....
make[3]: *** [Makefile:1764: drivers] Error 2

disable_nonboot_cpus() function is no longer supported in place of freeze_secondary_cpus(), fixed patch