TDK/InvenSense temperature sensor


Required properties:
 - compatible : "tdktherm"
 - reg : chip select ID
 - spi-max-frequency: support up to 24Mhz.
 - rtc_rst-gpios: rtc reset
 - spi-cpol: SPI mode
 - spi-cpha: SPI mode


Example:
        temp_sensor@0 {
                compatible = "tdktherm";
                reg = <0>; // Chip select ID
                spi-max-frequency = <10000000>; // Can support up to 24 MHz
                spi-cpol;
                spi-cpha;
                status = "okay";
        };