Revert "LCD_KCAL: Prevent out-of-range input values"

This reverts commit 9ac38f9307185a030665d0424bbe538135756a94.
Revert "LCD_KCAL: Introduce configurable kcal_min"

This reverts commit 144b67c6f7db881ab5e46e1ffcb2798efe6d1f4d.
Revert "lcd_kcal: Correct the copyright information"

This reverts commit 44eb01c6d095a6c8b8ef8eadff63ef97f39712dd.
Revert "LCD_KCAL: Color Control driver for M8"

This reverts commit f37f6252facdda0416cc74928e4222fdc2b9f012.
Revert "Revert "LCD_KCAL Colour Control for m8""

This reverts commit 463dc593545826bb093a4cbb6f758dec414d70d6.
Config update