DynamicTablesPkg: SsdtSerialPortFixupLib fix ECC errors

Fix the following ECC reported errors in SsdtSerialPortFixupLib.
  - [9002]  The function headers should follow Doxygen special
            documentation blocks in section 2.3.5 in Comment,
            <@param [in]> does NOT have [in, out]

Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
1 file changed