Add kernel drivers for SPI and UART and make locking APIs more consistent (#489)

- Add kernel support for SPI driver
- Add kernel support for UART driver
- Implemented ESP32 UART kernel driver
- Update existing UART-related code in Tactility to use new kernel driver
- Remove UART from tt::hal::Configuration
- Remove tt_hal_uart functionality but keep functions for now
- Update devicetrees for UART changes
- Kernel mutex and recursive mutex: improved locking API design
- Other kernel improvements
- Added device_exists_of_type() and device_find_by_name()

Devices/lilygo-tlora-pager/Source/Init.cpp

@@ -41,7 +41,7 @@ bool tpagerInit() {
             gps_service->getGpsConfigurations(gps_configurations);
             if (gps_configurations.empty()) {
                 if (gps_service->addGpsConfiguration(tt::hal::gps::GpsConfiguration {
-                    .uartName = "Internal",
+                    .uartName = "uart0",
                     .baudRate = 38400,
                     .model = tt::hal::gps::GpsModel::UBLOX10
                 })) {