Build improvements (#250)

- Fix case for board configs
-  CMake now only builds a single board instead of all boards for the selected SOC. This makes it quicker to compile a single firmware.

Boards/CYD-2432S024C/Source/CYD2432S024C.cpp

@@ -12,7 +12,7 @@ bool initBoot() {
     return driver::pwmbacklight::init(TWODOTFOUR_LCD_PIN_BACKLIGHT);
 }
 
-const tt::hal::Configuration cyd_2432S024c_config = {
+const tt::hal::Configuration cyd_2432s024c_config = {
     .initBoot = initBoot,
     .createDisplay = createDisplay,
     .sdcard = createYellowSdCard(),

Boards/CYD-2432S024C/Source/CYD2432S024C.h

@@ -3,4 +3,4 @@
 #include <Tactility/hal/Configuration.h>
 
 // Capacitive touch version of the 2.4" yellow board
-extern const tt::hal::Configuration cyd_2432S024c_config;
+extern const tt::hal::Configuration cyd_2432s024c_config;