Beaglebone green wireless steals 2 GPIOs

[steely-glint]

I've been trying to get ledscape to work on the Beaglebone green wireless.
(It's a BB with 2 seeed connectors plus wifi/Bluetooth - minus the Ethernet and HDMI)
I used the lts kernel and debian jessie (since the BBG-W isn't supported on earlier builds)
update_kernel.sh --bone-rt-kernel --lts-4_4
I also used
bash patch_dts.sh /boot/dtbs/$(uname -r)/am335x-bonegreen-wireless.dtb
to generate a suitable dtb
This nearly works - but I get the following error message :
pru_gpio:173: /sys/class/gpio/gpio26/value: Unable to open? No such file or directory

As far as I can tell this is because the BBG-W steals 2 gpios to enable/disable the Bluetooth and wifi chips - the schematic seems to indicate they are: GPIO0_26 (WIFI) and GPIO1_28 (BT)

I don't need 48 lines - is there an easy way to reduce the GPIO needs and exclude these 2
from LEDScape's use? (Say disabling a PRU?)