MIPS: qemu-malta: add PCI support

Qemu emulates the Galileo GT64120 System Controller
which provides a CPU bus to PCI bus bridge.

The patch adds driver for this bridge and enables
PCI support for the emulated Malta board.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
diff --git a/include/configs/qemu-malta.h b/include/configs/qemu-malta.h
index 436bb49..ef44d3d 100644
--- a/include/configs/qemu-malta.h
+++ b/include/configs/qemu-malta.h
@@ -17,6 +17,10 @@
  */
 #define CONFIG_QEMU_MALTA
 
+#define CONFIG_PCI
+#define CONFIG_PCI_GT64120
+#define CONFIG_PCI_PNP
+
 /*
  * CPU Configuration
  */
@@ -104,6 +108,8 @@
 #undef CONFIG_CMD_NET
 #undef CONFIG_CMD_NFS
 
+#define CONFIG_CMD_PCI
+
 #define CONFIG_SYS_LONGHELP		/* verbose help, undef to save memory */
 
 #endif /* _QEMU_MALTA_CONFIG_H */