Enable FAT12 support in CI Build Check (#65)

Description
-----------
Enable FAT12 support in CI Build Check

Test Steps
-----------
N/A

Checklist:
----------
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- [x] I have tested my changes. No regression in existing tests.
- [ N/A ] I have modified and/or added unit-tests to cover the code
changes in this Pull Request.

Related Issue
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.github/workflows/ci.yml

@@ -45,9 +45,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+      - name: Install Dependencies
+        run: |
+          sudo apt install build-essential cmake ninja-build
       - name: Build checks (Default configuration)
         run: |
-          cmake -S . -B build -DFREERTOS_PLUS_FAT_TEST_CONFIGURATION=DEFAULT_CONF
+          cmake -E env CFLAGS="-DffconfigFAT12_SUPPORT=1" \
+          cmake -S . -B build -DFREERTOS_PLUS_FAT_TEST_CONFIGURATION=DEFAULT_CONF -GNinja
           cmake --build build --target freertos_plus_fat_build_test
 
   # complexity: