[coreboot] EC config registers?

I've now run autoport to compare in tree T440P and stock bios. I didn't 
get as much output as expected and not as many differences save for one.

In devicetree.cb there are changes to the config0-config3 registers. Is 
this notable and can it cause pcie issues? Also the subsystemid is 
listed for devices in autoport, is it superfluous or should I append it 
to the current devicetree?

Autoport

chip ec/lenovo/h8 # FIXME: has_keyboard_backlight, 
has_power_management_beeps, has_uwb
    				register "beepmask0" = "0x00"
    				register "beepmask1" = "0x86"
    				register "config0" = "0xa7"
    				register "config1" = "0x05"
    				register "config2" = "0xa8"
    				register "config3" = "0xc6"
    				register "event2_enable" = "0xff"
    				register "event3_enable" = "0xff"
    				register "event4_enable" = "0xd0"
    				register "event5_enable" = "0x3c"
    				register "event7_enable" = "0x01"
    				register "event8_enable" = "0x7b"
    				register "event9_enable" = "0xff"
    				register "eventc_enable" = "0xff"
    				register "eventd_enable" = "0xff"
    				register "evente_enable" = "0x9d"

Tree

chip ec/lenovo/h8
    				register "beepmask0" = "0x00"
    				register "beepmask1" = "0x86"
    				register "config0" = "0xa6"
    				register "config1" = "0x0d"
    				register "config2" = "0xa8"
    				register "config3" = "0xc4"
    				register "has_keyboard_backlight" = "1"
    				register "event2_enable" = "0xff"
    				register "event3_enable" = "0xff"
    				register "event4_enable" = "0xd0"
    				register "event5_enable" = "0x3c"
    				register "event7_enable" = "0x01"
    				register "event8_enable" = "0x7b"
    				register "event9_enable" = "0xff"
    				register "eventc_enable" = "0xff"
    				register "eventd_enable" = "0xff"
    				register "evente_enable" = "0x9d"