Add missing pull-up for RX pin in nrf54h20dk dual uart configuration.
Lack of pull-up was causing test failures.
Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no>
Adding a separate overlay for nrf54l15 flpr is required because
running tests on console uart fails.
Signed-off-by: Jakub Zymelka <jakub.zymelka@nordicsemi.no>
Conigure UART to use 2 stop bits and even parity
in 'dual transmission' case
to cover more driver code cases.
Signed-off-by: Bartosz Miller <bartosz.miller@nordicsemi.no>
UART error may be reported with random timing
from either UART in configuration mismatch case.
The test case is now aligned to such behaviour.
Signed-off-by: Bartosz Miller <bartosz.miller@nordicsemi.no>
