[SERIAL] Don't use ASYNC_ constants with the uart_port structure

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c
index 3490022..429de27 100644
--- a/drivers/serial/amba-pl010.c
+++ b/drivers/serial/amba-pl010.c
@@ -566,7 +566,7 @@
 			.uartclk	= 14745600,
 			.fifosize	= 16,
 			.ops		= &amba_pl010_pops,
-			.flags		= ASYNC_BOOT_AUTOCONF,
+			.flags		= UPF_BOOT_AUTOCONF,
 			.line		= 0,
 		},
 		.dtr_mask	= 1 << 5,
@@ -581,7 +581,7 @@
 			.uartclk	= 14745600,
 			.fifosize	= 16,
 			.ops		= &amba_pl010_pops,
-			.flags		= ASYNC_BOOT_AUTOCONF,
+			.flags		= UPF_BOOT_AUTOCONF,
 			.line		= 1,
 		},
 		.dtr_mask	= 1 << 7,