rtc: rv3028: fix trickle resistor values

Version 1.0 of the application manual had the wrong resistor values. Fix
them according to version 1.1

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20201009153101.721149-2-alexandre.belloni@bootlin.com