Update CONFIG_PCIAUTO_SKIP_HOST_BRIDGE to related boards

Remove test for CONFIG_MPC5200 in drivers/pci/pci_auto.c and define
CONFIG_PCIAUTO_SKIP_HOST_BRIDGE in related board configuration files.

Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
diff --git a/include/configs/TQM5200.h b/include/configs/TQM5200.h
index b36c826..bff2edf 100644
--- a/include/configs/TQM5200.h
+++ b/include/configs/TQM5200.h
@@ -190,6 +190,7 @@
 
 #ifdef CONFIG_PCI
 #define CONFIG_CMD_PCI
+#define CONFIG_PCIAUTO_SKIP_HOST_BRIDGE	1
 #endif
 
 #if defined(CONFIG_MINIFAP) || defined(CONFIG_STK52XX) || defined(CONFIG_FO300)