Got it, from
http://www.ti.com/lit/ds/symlink/am3358.pdf
from:
U5 : ULCD_VSYNC : L
it looks like "pupdStateAfterHHV":"PD" is the match....
{"type":"PinCommonInfo","devicePinID":"ID_1977","controlRegisterOffset":"0x08e0","pupdStateDuringHHV":"OFF","pupdStateAfterHHV":"PD","type":"PinCommonInfo","pinModeInfo":[{"peripheralPinID":"ID_1978","mode":"0","interfaceName":"LCDC","signalName":"lcd_vsync","ioDir":"O"},{"peripheralPinID":"ID_1765","mode":"1","interfaceName":"GPMC","signalName":"gpmc_a8","ioDir":"O"},{"peripheralPinID":"ID_1707","mode":"2","interfaceName":"GPMC","signalName":"gpmc_a1","ioDir":"O"},{"peripheralPinID":"ID_1979","mode":"3","interfaceName":"ECAT_PRUSS1","signalName":"pr1_edio_data_in2","ioDir":"I"},{"peripheralPinID":"ID_1980","mode":"4","interfaceName":"ECAT_PRUSS1","signalName":"pr1_edio_data_out2","ioDir":"O"},{"peripheralPinID":"ID_1981","mode":"5","interfaceName":"PRU1_PRUSS1","signalName":"pr1_pru1_pru_r30[8]","ioDir":"O"},{"peripheralPinID":"ID_1982","mode":"6","interfaceName":"PRU1_PRUSS1","signalName":"pr1_pru1_pru_r31[8]","ioDir":"I"},
{"peripheralPinID":"ID_1983","mode":"7","interfaceName":"GPIO2","signalName":"gpio2[22]","ioDir":"IO"}]},"ID_1856"