powerpc/c29xpcie: Enable configs to use generic board code

Add configs:
  o CONFIG_SYS_GENERIC_BOARD
  o CONFIG_DISPLAY_BOARDINFO
in C29XPCIE config header file to use U-boot generic
board code.

Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

include/configs/C29XPCIE.h

@@ -12,6 +12,8 @@
 #define __CONFIG_H
 
 #define CONFIG_PHYS_64BIT
+#define CONFIG_SYS_GENERIC_BOARD
+#define CONFIG_DISPLAY_BOARDINFO
 
 #ifdef CONFIG_C29XPCIE
 #define CONFIG_PPC_C29X