cbmem: use boot state machine

There were previously 2 functions, init_cbmem_pre_device() and
init_cbmem_post_device(), where the 2 cbmem implementations
implemented one or the other. These 2 functions are no longer
needed to be called in the boot flow once the boot state callbacks
are utilized.

Change-Id: Ida71f1187bdcc640ae600705ddb3517e1410a80d
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3136
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/include/cbmem.h

@@ -161,11 +161,6 @@ void cbmem_list(void);
 void cbmem_arch_init(void);
 void __attribute__((weak)) cbmem_post_handling(void);
 void cbmem_print_entry(int n, u32 id, u64 start, u64 size);
-/* The pre|post device cbmem initialization functions are for the
- * ramstage main to call. When cbmem is actually initialized depends on
- * the cbmem implementation. */
-void init_cbmem_pre_device(void);
-void init_cbmem_post_device(void);
 #else
 static inline void cbmem_arch_init(void) {}
 #endif /* __PRE_RAM__ */