[Keyboard] CK60i support (#11432)

* Initial CK60i support

* Update README, add HAL_PWM and remove AUDIO and BLUETOOTH from rules.mk

* VIA support

* Fix VIA_ENABLE to 'yes'

* Remove CONSOLE_ENABLE from rules.mk

* attribute weak for encoder callback

* Remove KC_NO definition from default keymap

Co-authored-by: Gondolindrim <alvaro.augusto.volpato@gmail.com>

keyboards/ck60i/rules.mk

@@ -0,0 +1,22 @@
+# MCU name
+MCU = STM32F072
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes      # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no        # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = yes           # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality 
+RGBLIGHT_ENABLE = yes        # Enable keyboard RGB underglow
+BACKLIGHT_DRIVER = pwm
+ENCODER_ENABLE = yes
+
+# Enter lower-power sleep mode when on the ChibiOS idle thread
+OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE