helix:edvorakjp keymap change to use split_common (#16532)

keyboards/helix/rev2/keymaps/edvorakjp/rules.mk

@@ -5,6 +5,7 @@
 #   See TOP/keyboards/helix/rules.mk for a list of options that can be set.
 #   See TOP/docs/config_options.md for more information.
 #
+SPLIT_KEYBOARD = yes
 LTO_ENABLE = no  # if firmware size over limit, try this option
 TAP_DANCE_ENABLE = yes