arm: Change global data baudrate to int

This does not need to be a long, so change it.

Also adjust bi_baudrate to be unsigned.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/arch/arm/include/asm/u-boot.h b/arch/arm/include/asm/u-boot.h
index eac3800..2ba98bc 100644
--- a/arch/arm/include/asm/u-boot.h
+++ b/arch/arm/include/asm/u-boot.h
@@ -37,7 +37,7 @@
 #define _U_BOOT_H_	1
 
 typedef struct bd_info {
-    int			bi_baudrate;	/* serial console baudrate */
+	unsigned int	bi_baudrate;	/* serial console baudrate */
     ulong	        bi_arch_number;	/* unique id for this board */
     ulong	        bi_boot_params;	/* where this board expects params */
 	unsigned long	bi_arm_freq; /* arm frequency */