Config: fix axis swap and CoreXY setting

Y stepper was set to be reversed by default. This alone swapped the X
and Y axis. The first fix was to enable COREYX instead of COREXY. With
the correct Y direction the printer will run with the correct axis in
COREXY mode.

Marlin/Configuration.h

@@ -754,10 +754,10 @@
 
 // Enable one of the options below for CoreXY, CoreXZ, or CoreYZ kinematics,
 // either in the usual order or reversed
-//#define COREXY
+#define COREXY
 //#define COREXZ
 //#define COREYZ
-#define COREYX
+//#define COREYX
 //#define COREZX
 //#define COREZY
 //#define MARKFORGED_XY  // MarkForged. See https://reprap.org/forum/read.php?152,504042
@@ -1336,7 +1336,7 @@
 
 // Invert the stepper direction. Change (or reverse the motor connector) if an axis goes the wrong way.
 #define INVERT_X_DIR false
-#define INVERT_Y_DIR true
+#define INVERT_Y_DIR false
 #define INVERT_Z_DIR false
 //#define INVERT_I_DIR false
 //#define INVERT_J_DIR false