[Blackfin] arch: Resolve the clash issue of UART defines between blackfin headers and include/linux/serial_reg.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Cc: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 7e8ceea..72477c2 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -95,14 +95,14 @@
 	AWA_data_clear = SYSCR,
 	AWA_data_set = SYSCR,
 	AWA_toggle = SYSCR,
-	AWA_maska = UART_SCR,
-	AWA_maska_clear = UART_SCR,
-	AWA_maska_set = UART_SCR,
-	AWA_maska_toggle = UART_SCR,
-	AWA_maskb = UART_GCTL,
-	AWA_maskb_clear = UART_GCTL,
-	AWA_maskb_set = UART_GCTL,
-	AWA_maskb_toggle = UART_GCTL,
+	AWA_maska = BFIN_UART_SCR,
+	AWA_maska_clear = BFIN_UART_SCR,
+	AWA_maska_set = BFIN_UART_SCR,
+	AWA_maska_toggle = BFIN_UART_SCR,
+	AWA_maskb = BFIN_UART_GCTL,
+	AWA_maskb_clear = BFIN_UART_GCTL,
+	AWA_maskb_set = BFIN_UART_GCTL,
+	AWA_maskb_toggle = BFIN_UART_GCTL,
 	AWA_dir = SPORT1_STAT,
 	AWA_polar = SPORT1_STAT,
 	AWA_edge = SPORT1_STAT,