This device-tree pxa update brings :
- a couple of changes for future pxa2xx platforms
- 2 fixes in RTC and I2C domain
* tag 'pxa-dt-4.20' of https://github.com/rjarzmik/linux:
ARM: dts: pxa: add pincontrol helpers
ARM: dts: pxa: fix power i2c base address
ARM: dts: pxa: fix the rtc controller
ARM: dts: pxa: change serial node names
Signed-off-by: Arnd Bergmann <arnd@arndb.de>