serial: xuartps: Removed unwanted checks while reading the error conditions

This patch Remove the unwated checks while reading the parity,framing,
overrun and Break detection errors.
Signed-off-by: Nava kishore Manne <navam@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
[stelford@cadence.com: cherry picked from
https://github.com/Xilinx/linux-xlnx commit
b1cf74970df5470ffbc8e7876a9edf5e3498ef94]
Signed-off-by: Scott Telford <stelford@cadence.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/xilinx_uartps.c

@@ -248,8 +248,6 @@ static void cdns_uart_handle_rx(void *dev_id, unsigned int isrstatus)
 		status_mask = port->read_status_mask;
 		status_mask &= ~port->ignore_status_mask;
 
-		if ((isrstatus & CDNS_UART_IXR_TOUT) ||
-		    (isrstatus & CDNS_UART_IXR_RXTRIG)) {
 		if (data &&
 		    (port->read_status_mask & CDNS_UART_IXR_BRK)) {
 			port->read_status_mask &= ~CDNS_UART_IXR_BRK;
@@ -289,7 +287,7 @@ static void cdns_uart_handle_rx(void *dev_id, unsigned int isrstatus)
 					     TTY_OVERRUN);
 		}
 		tty_insert_flip_char(&port->state->port, data, status);
-		}
+		isrstatus = 0;
 	}
 	spin_unlock(&port->lock);
 	tty_flip_buffer_push(&port->state->port);