1. dts.fixup files updated with peripheral address and IRQ NUMBER.
2. Peripheral address is taken from DT.
3. IRQ number is taken from DT.
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>
1. Added support for two instances of UARTE.
2. Kconfig.nrfx is capable to configure UART and UARTE driver.
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>