disable gpio 61 (p8_26) on boot

Hello,
For some reason, I got GPIO_61 powered up at boot.
I’m booting Debian 9 from SD card,

I’m using both spi0 and spi1 in my project, for enable and use it I’m working with config_pin command for spi pins
and for GPIO I’m using python script with GPIO.HIGH /LOW functions.

my /boot/uenv.txt :

#Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0

uname_r=4.14.108-ti-r113
#uuid=
#dtb=

###U-Boot Overlays###
###Documentation: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Overlays
###Master Enable
enable_uboot_overlays=1