Add mox-shutdown-powersave to base-minimal system

This package provides init service that should be automatically
activated and package it self should be installed on Turris MOX only.

lists/base-min.lua.m4

@@ -15,6 +15,7 @@ forInstallCritical(kmod,file2args(kmod.list))
 if board == "mox" then
 	forInstallCritical(kmod,file2args(kmod-mox.list))
 	Install("mox-support", { critical = true })
+	Install("mox-shutdown-powersave", { priority = 40 })
 	Install("kmod-ath10k-ct", "zram-swap", { priority = 40 })
 elseif board == "omnia" then
 	forInstallCritical(kmod,file2args(kmod-omnia.list))

patches/openwrt/hack/0001-base-files-do-not-automatically-activate-services-an.patch

@@ -72,6 +72,7 @@ index 0000000..3fc5061
 +lvm2
 +lxc-auto
 +mountd
++mox-shutdown-powersave
 +mox_autosetup
 +nethist
 +network