fix up lets_split keymaps

keyboards/lets_split/rev2/config.h

@@ -19,7 +19,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #ifndef REV2_CONFIG_H
 #define REV2_CONFIG_H
 
-#include "../config.h"
+#include "config_common.h"
 
 /* USB Device descriptor parameter */
 #define VENDOR_ID       0xFEED

keyboards/lets_split/rev2/rev2.h

@@ -1,7 +1,7 @@
 #ifndef REV2_H
 #define REV2_H
 
-#include "../lets_split.h"
+#include "lets_split.h"
 
 //void promicro_bootloader_jmp(bool program);
 #include "quantum.h"