Kirkwood: bugfix: window size (mis)calculation

Fixed kw_winctrl_calcsize() off-by-1 bug which caused mapping
windows size to be cut by half.
This corrected all windows address configuration

Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>

arch/arm/cpu/arm926ejs/kirkwood/cpu.c

@@ -81,7 +81,7 @@ unsigned int kw_winctrl_calcsize(unsigned int sizeval)
 	unsigned int j = 0;
 	u32 val = sizeval >> 1;
 
-	for (i = 0; val > 0x10000; i++) {
+	for (i = 0; val >= 0x10000; i++) {
 		j |= (1 << i);
 		val = val >> 1;
 	}