fix typo in cmake step for ili9341 build

.github/workflows/build.yml

@@ -42,7 +42,7 @@ jobs:
       # Note the current convention is to use the -S and -B options here to specify source 
       # and build directories, but this is only available with CMake 3.13 and higher.  
       # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
-      run: PICO_SDK_PATH=../sources/Externals/pico-sdk PICO_TOOLCHAIN_PATH=${{steps.arm-none-eabi-gcc-action.outputs.path}} cmake ../sources -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DUSE_LCD=LCD_ST7789 
+      run: PICO_SDK_PATH=../sources/Externals/pico-sdk PICO_TOOLCHAIN_PATH=${{steps.arm-none-eabi-gcc-action.outputs.path}} cmake ../sources -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DUSE_LCD=LCD_ILI9341
 
     - name: Set Build Number
       shell: bash