[ARM] pxa: move UART register definitions into dedicated regs-uart.h

Signed-off-by: Eric Miao <eric.miao@marvell.com>
diff --git a/drivers/serial/pxa.c b/drivers/serial/pxa.c
index abc00be..a793d1f 100644
--- a/drivers/serial/pxa.c
+++ b/drivers/serial/pxa.c
@@ -48,6 +48,7 @@
 #include <mach/hardware.h>
 #include <asm/irq.h>
 #include <mach/pxa-regs.h>
+#include <mach/regs-uart.h>
 
 
 struct uart_pxa_port {