boards/T4240qds:Fix IFC AMASK init as per FPGA register space

T4240QDS's QIXIS FPGA has 4k register space size and IFC controller's
Address Mask Registers is initialised 64K size.

So Fix the Address Mask Register initilisation as 4K

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

include/configs/t4qds.h

@@ -259,7 +259,7 @@ unsigned long get_board_ddr_clk(void);
 				| CSPR_PORT_SIZE_8 \
 				| CSPR_MSEL_GPCM \
 				| CSPR_V)
-#define CONFIG_SYS_AMASK3	IFC_AMASK(64*1024)
+#define CONFIG_SYS_AMASK3	IFC_AMASK(4 * 1024)
 #define CONFIG_SYS_CSOR3	0x0
 /* QIXIS Timing parameters for IFC CS3 */
 #define CONFIG_SYS_CS3_FTIM0		(FTIM0_GPCM_TACSE(0x0e) | \