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>
Rx_byte_offset was wrongly updated which could lead to test failures. Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no>
Add more test cases for UARTE driver API Signed-off-by: Bartosz Miller <bartosz.miller@nordicsemi.no>
