zero-common: Decommonize BOARD_MODEM_TYPE
zero-common: Decommonize BOARD_MODEM_TYPE

* Spr uses mdm9x35

Signed-off-by: Brandon McAnsh <b221b0128acc8543b2071d143ea6dbc7b1554a73@gmail.com>

TeamNexus/android_device_samsung_zero-common,TeamNexus/android_device_samsung_zero-common,TeamNexus/android_device_samsung_zero-common,TeamNexus/android_device_samsung_zero-common,TeamNexus/android_device_samsung_zero-common