serial: imx: bit &/| confusion

Since UCR1_UARTEN is defined 1, the port was always treated as enabled.

Signed-off-by: Roel Kluin <[e-mail]>
Cc: Alan Cox <[e-mail]>
Acked-by: Oskar Schirmer <[e-mail]>
Cc: Sascha Hauer <[e-mail]>
Cc: Fabian Godehardt <[e-mail]>
Cc: Daniel Glöckner <[e-mail]>
Cc: Russell King <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/serial/imx.c

···
 			   int *parity, int *bits)
 {
 
-	if ( readl(sport->port.membase + UCR1) | UCR1_UARTEN ) {
+	if (readl(sport->port.membase + UCR1) & UCR1_UARTEN) {
 		/* ok, the port was enabled */
 		unsigned int ucr2, ubir,ubmr, uartclk;
 		unsigned int baud_raw;