boards: tdk: robokit1: align driver init levels with devicetree deps

This board contains both an NTC sensor dependings on a specific SPI ADC and
a TMP116 containing both a sensor and an EEPROM.

Align these driver initialization priorities with the devicetree
dependencies to avoid build failures with CONFIG_CHECK_INIT_PRIORITIES=y.

Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>