drivers: sensors: ti_hdc20xx: convert to i2c_dt_spec
drivers: sensors: ti_hdc20xx: convert to i2c_dt_spec

Convert ti_hdc20xx temperature and humidity sensor driver to
`i2c_dt_spec`.

Signed-off-by: Aurelien Jarno <bceb368e7f2cb351af47298f32034f0587bbe4a6@aurel32.net>

galak/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,galak/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,finikorg/zephyr,finikorg/zephyr,finikorg/zephyr