powerpc: socrates: convert to generic board

Signed-off-by: NAnatolij Gustschin <agust@denx.de>
Cc: York Sun <yorksun@freescale.com>

include/configs/socrates.h

@@ -27,6 +27,8 @@
 #define CONFIG_E500		1	/* BOOKE e500 family		*/
 #define CONFIG_MPC8544		1
 #define CONFIG_SOCRATES		1
+#define CONFIG_SYS_GENERIC_BOARD
+#define CONFIG_DISPLAY_BOARDINFO
 
 #define	CONFIG_SYS_TEXT_BASE	0xfff80000