arm/km: trigger reconfiguration for the Xilinx FPGA

The Xilinx FPGA must be reconfigured each time the unit
reboots. The FPGA is connected to the GPIO pin 39 from kirkwood.
This patch triggers this pin for km_kirkwood_pci targets.

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Prafulla Wadaskar <prafulla@marvell.com>
diff --git a/include/configs/km_kirkwood.h b/include/configs/km_kirkwood.h
index e51b270..ed36124 100644
--- a/include/configs/km_kirkwood.h
+++ b/include/configs/km_kirkwood.h
@@ -54,4 +54,7 @@
 #define KM_IVM_BUS	"pca9544a:70:9"	/* I2C2 (Mux-Port 1)*/
 #define KM_ENV_BUS	"pca9544a:70:d"	/* I2C2 (Mux-Port 5)*/
 
+/* GPIO Pin from kirkwood connected to PROGRAM_B pin of the xilinx FPGA */
+#define KM_XLX_PROGRAM_B_PIN    39
+
 #endif /* _CONFIG_KM_KIRKWOOD */