mpc83xx: Add gdsys hrcon board

The gdsys hrcon board is based on a Freescale MPC8308 SOC.
It boots from NOR-Flash, kernel and rootfs are stored on
SD-Card.

On board peripherals include:
- 1x GbE (optional)
- Lattice ECP3 FPGA connected via eLBC and PCIe

Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/arch/powerpc/cpu/mpc83xx/Kconfig b/arch/powerpc/cpu/mpc83xx/Kconfig
index 2a1abe0..69a600c 100644
--- a/arch/powerpc/cpu/mpc83xx/Kconfig
+++ b/arch/powerpc/cpu/mpc83xx/Kconfig
@@ -68,6 +68,9 @@
 config TARGET_TQM834X
 	bool "Support TQM834x"
 
+config TARGET_HRCON
+	bool "Support hrcon"
+
 endchoice
 
 source "board/esd/vme8349/Kconfig"
@@ -88,5 +91,6 @@
 source "board/sbc8349/Kconfig"
 source "board/tqc/tqm834x/Kconfig"
 source "board/ve8313/Kconfig"
+source "board/gdsys/mpc8308/Kconfig"
 
 endmenu