drivers: sensor: HS300x DF Command Update

By default, the sensor should be factory-programmed to operate
in Sleep Mode. A Measurement Request (MR) command is required
to exit the sensor from its sleep state. An MR command should
consist of the 7-bit address followed by an eighth bit set to
0 (write). However, many I2C controllers cannot generate merely
the address byte with no data. To overcome this limitation the
MR command should be followed by a dummy byte (zero value).

Signed-off-by: Ioannis Karachalios <ioannis.karachalios.px@renesas.com>