mfd: palmas: Use device_get_match_data() to simplify the code

Directly get the match data with device_get_match_data().

Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/202211171952240424511@zte.com.cn