board: socrates: Remove <common.h> and add needed includes

Remove <common.h> from this board vendor directory and when needed
add missing include files directly.

Reviewed-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/socrates/tlb.c b/board/socrates/tlb.c
index 631f6c3..0cc6757 100644
--- a/board/socrates/tlb.c
+++ b/board/socrates/tlb.c
@@ -9,8 +9,9 @@
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  */
 
-#include <common.h>
+#include <config.h>
 #include <asm/mmu.h>
+#include <asm/ppc.h>
 
 struct fsl_e_tlb_entry tlb_table[] = {
 	/* TLB 0 - for temp stack in cache */