PMIC reset reason list for TX2 MB2

hello AlexCo,

please download Cboot Sources T186 via https://developer.nvidia.com/embedded/linux-tegra.
you should check below for the PMIC reset reasons.
for example,
$L4T_Sources/r32.6.1/Linux_for_Tegra/source/public/cboot/bootloader/partner/t18x/common/lib/linuxboot/t186/linuxboot_helper.c

        char *pmic_reset_reason_table[] = {
                                                                           "NIL_OR_MORE_THAN_1_BIT",
                                                                           "SHDN",     /* B0 */
                                                                           "WDOG",
                                                                           "HDRST",
                                                                           "TOVLD",
                                                                           "MBSLD",
                                                                           "MBO",
                                                                           "MBU",
                                                                           "RSTIN",    /* B7 */
        };