moby: kernel: clarify that something in the IO_STRICT_DEVMEM group is needed

pkgs/additional/linux-sane-pinephonepro/default.nix

@@ -86,6 +86,7 @@ linux_latest.override {
         IO_STRICT_DEVMEM = no;
         PRINTK_INDEX = lib.mkForce no;
         RUNTIME_TESTING_MENU = lib.mkForce yes;
+
         # TODO: at least one of these is actually required for boot.
         CRASH_DUMP = lib.mkForce yes;
         CRASH_RESERVE = yes;