northbridge: Trivial - drop trailing blank lines at EOF

Change-Id: I9515778e97cc5ae0e366b888da90a651ae5994fe
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6210
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

src/northbridge/intel/sandybridge/mrccache.c

@@ -247,4 +247,3 @@ struct mrc_data_container *find_current_mrc_cache(void)
 	//  0. compare MRC data to last mrc-cache block (exit if same)
 	return find_current_mrc_cache_local(cache_base, cache_size);
 }
-