[Keymap] cleanup keyboards/helix/{rev2|rev3_5rows}/keymaps/five_rows (#12259)

* cleanup keyboards/helix/{rev2|rev3_5rows}/keymaps/five_rows

* Made the layout data easier to read.
  * helix/rev2/keymaps/five_rows/keymap.c
  * helix/rev3_5rows/keymaps/five_rows/keymap.c

* The following two were made the same.
  * keymaps/five_rows/config.h
  * keymaps/five_rows/oled_display.c

The binary of the compilation result has not changed.

* update keyboards/helix/rev2/keymaps/five_rows/rules.mk

KEYBOARD_LOCAL_FEATURES_MK was moved to the end.

* add '#define DISABLE_SYNC_TIMER' into helix/rev3_5rows/keymaps/five_rows/config.h

The sync timer features worsen the matrix scan rate of the Helix keyboard. I'm not sure if it makes sense to have sync timer features enabled on the Helix keyboard. So in my keymap I disable this.

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

@@ -35,6 +35,20 @@ ifneq ($(strip $(HELIX)),)
         LED_BACK_ENABLE = no
         LED_UNDERGLOW_ENABLE = no
     endif
+    ifneq ($(filter nooled no-oled,$(strip $1)),)
+        OLED_ENABLE = no
+    endif
+    ifeq ($(strip $1),oled)
+        OLED_ENABLE = yes
+    endif
+    ifneq ($(filter core-oled core_oled newoled new-oled olednew oled-new,$(strip $1)),)
+        OLED_ENABLE = yes
+        OLED_SELECT = core
+    endif
+    ifneq ($(filter local-oled local_oled oldoled old-oled oledold oled-old,$(strip $1)),)
+        OLED_ENABLE = yes
+        OLED_SELECT = local
+    endif
     ifeq ($(strip $1),console)
         CONSOLE_ENABLE = yes
     endif
@@ -79,10 +93,10 @@ ifeq ($(strip $(DEBUG_CONFIG)), yes)
     OPT_DEFS += -DDEBUG_CONFIG
 endif
 
-# convert Helix-specific options (that represent combinations of standard options)
-#   into QMK standard options.
-include $(strip $(KEYBOARD_LOCAL_FEATURES_MK))
-
 ifeq ($(strip $(OLED_ENABLE)), yes)
     SRC += oled_display.c
 endif
+
+# convert Helix-specific options (that represent combinations of standard options)
+#   into QMK standard options.
+include $(strip $(KEYBOARD_LOCAL_FEATURES_MK))