Device migrations, new drivers, cleanup (#567)

* **New Features**
  * Added native display support for ST7796, ILI9341, and ST7789 panels across supported boards.
  * Added FT5x06 and FT6x36 touchscreen support.
  * Generic PWM driver
  * ESP32 PWM driver
  * Generic RGB LED driver
  * RGB PWM LED driver
  * RGB GPIO LED driver
  * Implementation of RGB LED for various boards

* **Improvements**
  * Updated board hardware descriptions to use explicit display/touch/backlight device-tree bindings and disabled deprecated HAL usage.
  * Improved display and touch-driver cleanup to prevent stale resources and improve shutdown reliability.
  * Pinned esp-hosted library to a fixed version
 
* **Deletions**
  * Obsolete placeholder display
  * Legacy ILI9488 support.
  * ESP32-specific LEDC PWM implementation

TactilityKernel/source/kernel_symbols.c

@@ -29,7 +29,6 @@
 #include <tactility/drivers/rtc.h>
 #include <tactility/drivers/sdcard.h>
 #include <tactility/drivers/spi_controller.h>
-#include <tactility/drivers/spi_peripheral.h>
 #include <tactility/drivers/uart_controller.h>
 #include <tactility/drivers/wifi.h>
 #include <tactility/error.h>
@@ -243,8 +242,6 @@ const struct ModuleSymbol KERNEL_SYMBOLS[] = {
     DEFINE_MODULE_SYMBOL(spi_controller_try_lock),
     DEFINE_MODULE_SYMBOL(spi_controller_unlock),
     DEFINE_MODULE_SYMBOL(SPI_CONTROLLER_TYPE),
-    // drivers/spi_peripheral
-    DEFINE_MODULE_SYMBOL(SPI_PERIPHERAL_TYPE),
     // drivers/uart_controller
     DEFINE_MODULE_SYMBOL(uart_controller_open),
     DEFINE_MODULE_SYMBOL(uart_controller_close),