imx: mx6: fix reg base address when runtime usage

Should use parenthese to wrap the macro definition, otherwise
we will encounter error like the following:

"
if (base_addr != LCDIF1_BASE_ADDR) {
    puts("Wrong LCD interface!\n");
    return -EINVAL;
}
"

Without this patch, we will always encounter "Wrong LCD interface".

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Stefano Babic <sbabic@denx.de>

arch/arm/include/asm/arch-mx6/imx-regs.h

@@ -335,10 +335,10 @@
 #include <asm/types.h>
 
 /* only for i.MX6SX/UL */
-#define WDOG3_BASE_ADDR (is_cpu_type(MXC_CPU_MX6UL) ?	\
-			 MX6UL_WDOG3_BASE_ADDR :  MX6SX_WDOG3_BASE_ADDR)
-#define LCDIF1_BASE_ADDR (is_cpu_type(MXC_CPU_MX6UL)) ?	\
-			  MX6UL_LCDIF1_BASE_ADDR : MX6SX_LCDIF1_BASE_ADDR
+#define WDOG3_BASE_ADDR ((is_cpu_type(MXC_CPU_MX6UL) ?	\
+			 MX6UL_WDOG3_BASE_ADDR :  MX6SX_WDOG3_BASE_ADDR))
+#define LCDIF1_BASE_ADDR ((is_cpu_type(MXC_CPU_MX6UL)) ?	\
+			  MX6UL_LCDIF1_BASE_ADDR : MX6SX_LCDIF1_BASE_ADDR)
 
 
 extern void imx_get_mac_from_fuse(int dev_id, unsigned char *mac);