Simplify I2C and SPI code (#237)

Tactility/Source/app/i2cscanner/I2cScanner.cpp

@@ -239,7 +239,7 @@ void I2cScannerApp::onScanTimer() {
 
     for (uint8_t address = 0; address < 128; ++address) {
         if (hal::i2c::masterHasDeviceAtAddress(port, address, 10 / portTICK_PERIOD_MS)) {
-            TT_LOG_I(TAG, "Found device at address %d", address);
+            TT_LOG_I(TAG, "Found device at address 0x%02X", address);
             if (!shouldStopScanTimer()) {
                 addAddressToList(address);
             } else {

Tactility/Source/app/i2csettings/I2cSettings.cpp

@@ -40,7 +40,7 @@ static void show(lv_obj_t* parent, const hal::i2c::Configuration& configuration)
 
     // On-off switch
 
-    if (configuration.canReinit) {
+    if (configuration.isMutable) {
         auto* state_switch = lv_switch_create(card);
         lv_obj_align(state_switch, LV_ALIGN_TOP_RIGHT, 0, 0);