board/evb64260/i2c.c: Fix GCC 4.6 build warnings

Fix:
i2c.c: In function 'i2c_init':
i2c.c:23:15: warning: variable 'actualFreq' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Eran Man <eran@nbase.co.il>
Acked-by: Heiko Schocher <hs@denx.de>

board/evb64260/i2c.c

@@ -20,7 +20,7 @@ static void
 i2c_init(int speed, int slaveaddr)
 {
 	unsigned int n, m, freq, margin, power;
-	unsigned int actualFreq, actualN = 0, actualM = 0;
+	unsigned int actualN = 0, actualM = 0;
 	unsigned int control, status;
 	unsigned int minMargin = 0xffffffff;
 	unsigned int tclk = 125000000;
@@ -37,7 +37,6 @@ i2c_init(int speed, int slaveaddr)
 				margin = freq - speed;
 			if (margin < minMargin) {
 				minMargin   = margin;
-				actualFreq  = freq;
 				actualN	    = n;
 				actualM	    = m;
 			}