[Keymap] Gherkin SuperMicro 28 (#8886)

* Gherkin SuperMicro 28

* Update keyboards/40percentclub/gherkin/keymaps/stevexyz/keymap.c

* Update keyboards/40percentclub/gherkin/keymaps/stevexyz/keymap.c

* Update keyboards/40percentclub/gherkin/keymaps/stevexyz/keymap.c

* Update keyboards/40percentclub/gherkin/keymaps/stevexyz/config.h

* Update keyboards/40percentclub/gherkin/keymaps/stevexyz/rules.mk

* Update keyboards/40percentclub/gherkin/keymaps/stevexyz/rules.mk

* removed jpegs

* removed jpegs

* Update keyboards/40percentclub/gherkin/keymaps/stevexyz/keymap.c

* Update keyboards/40percentclub/gherkin/keymaps/stevexyz/rules.mk

* removed firmware sizes

* Update keyboards/40percentclub/gherkin/keymaps/stevexyz/keymap.c

* Update keyboards/40percentclub/gherkin/keymaps/stevexyz/rules.mk

* Update keymap.c

keyboards/40percentclub/gherkin/keymaps/stevexyz/rules.mk

@@ -0,0 +1,19 @@
+# Build Options (yes/no)
+#
+BOOTMAGIC_ENABLE = lite      # Just bootloader enabled with keys
+MOUSEKEY_ENABLE = yes        # Mouse keys
+EXTRAKEY_ENABLE = yes        # Audio control and System control
+CONSOLE_ENABLE = no          # Console for debug
+COMMAND_ENABLE = no          # Commands for debug and configuration
+BACKLIGHT_ENABLE = yes       # Enable keyboard backlight functionality
+MIDI_ENABLE = no             # MIDI support 
+UNICODE_ENABLE = no          # Unicode
+BLUETOOTH_ENABLE = no        # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no            # Audio output on port C6
+FAUXCLICKY_ENABLE = no       # Use buzzer to emulate clicky switches
+HD44780_ENABLE = no          # Enable support for HD44780 based LCDs
+TAP_DANCE_ENABLE = no
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend (it uses the same timer as BACKLIGHT_ENABLE)
+
+NKRO_ENABLE = yes           # USB Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+RGBLIGHT_ENABLE = no