arm: omap: i2c: fix compile warning

Fix the following compile warning:
arch/arm/plat-omap/i2c.c:120:13: warning:
'omap_pm_set_max_mpu_wakeup_lat_compat' defined but not used
arch/arm/plat-omap/i2c.c:125:38: warning: 'omap_i2c_latency'
defined but not used

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/plat-omap/i2c.c

@@ -112,6 +112,7 @@ static inline int omap1_i2c_add_bus(int bus_id)
 }
 
 
+#ifdef CONFIG_ARCH_OMAP2PLUS
 /*
  * XXX This function is a temporary compatibility wrapper - only
  * needed until the I2C driver can be converted to call
@@ -130,7 +131,6 @@ static struct omap_device_pm_latency omap_i2c_latency[] = {
 	},
 };
 
-#ifdef CONFIG_ARCH_OMAP2PLUS
 static inline int omap2_i2c_add_bus(int bus_id)
 {
 	int l;