It seemed to work with the changes here:
root@p3768-0000-p3767-0001:/proc/device-tree# dmesg|grep MAX
[ 10.753893] spi0.0: ttyMAX0 at I/O 0x0 (irq = 250, base_baud = 2764800) is a MAX14830
[ 10.759392] spi0.0: ttyMAX1 at I/O 0x20 (irq = 250, base_baud = 2764800) is a MAX14830
[ 10.762332] spi0.0: ttyMAX2 at I/O 0x40 (irq = 250, base_baud = 2764800) is a MAX14830
[ 10.788307] spi0.0: ttyMAX3 at I/O 0x60 (irq = 250, base_baud = 2764800) is a MAX14830
root@p3768-0000-p3767-0001:/proc/device-tree# gpioinfo |grep M.00
line 76: "PM.00" "interrupt" input active-high [used]
Is there any documentation what the register in tegra234-mb2-bct-scr-p3767-0000.dts does?