rtc: ps3: set range

The PS3 has a 64bit second counter from 2000. While this exceeds the 64bit
UNIX timestamp, there is not doubt that non of them will still be working
by then.

Signed-off-by: Alexandre Belloni <[e-mail]>

drivers/rtc/rtc-ps3.c

···
 		return PTR_ERR(rtc);
 
 	rtc->ops = &ps3_rtc_ops;
+	rtc->range_max = U64_MAX;
 
 	platform_set_drvdata(dev, rtc);