arm: UART driver modifications for MKL25Z soc support

Since all interrupts come in on the status line,
we only connect it for the KL2X.

Change-Id: Ia9e0d483fe68464a0eeab08c95a043260e5793b0
Signed-off-by: Gustavo Denardin <gustavo.denardin@gmail.com>
1 file changed