i2c: normal_i2c can be made const (remaining drivers)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/arch/arm/mach-pxa/akita-ioexp.c b/arch/arm/mach-pxa/akita-ioexp.c
index 12d2fe0..254892a 100644
--- a/arch/arm/mach-pxa/akita-ioexp.c
+++ b/arch/arm/mach-pxa/akita-ioexp.c
@@ -29,7 +29,7 @@
 #define MAX7310_TIMEOUT  0x04
 
 /* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x18, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x18, I2C_CLIENT_END };
 
 /* I2C Magic */
 I2C_CLIENT_INSMOD;