uart: fix typo in uart_console.h

Fix typo introduced by commit 6b2443e("console: Fix warnings
related to the use of deprecated APIs")

Change-Id: I6b4db8ba781fecae4413f473001f40ff53c765f0
Signed-off-by: Qiu Peiyang <peiyangx.qiu@intel.com>
1 file changed