With the changes made in PR #76061, only on the F429ZI platform, in
the test_write_abort test,the number of received data (2) is not equal
to the number of sent data (1). It looks like uart_tx_abort is done very
quickly, and the callback doesn't have enough time to deal with it.
Adding a small delay solves the problem and doesn't affect results on
other platforms.
Signed-off-by: Fabrice DJIATSA <fabrice.djiatsa-ext@st.com>
c7da46a243