MLECO-1868: Code static analyzer warnings fixes

Signed-off-by: alexander <alexander.efremov@arm.com>
Change-Id: Ie423e9cad3fabec6ab077ded7236813fe4933dea
diff --git a/source/use_case/ad/include/AdMelSpectrogram.hpp b/source/use_case/ad/include/AdMelSpectrogram.hpp
index cf8a1d4..30a77c1 100644
--- a/source/use_case/ad/include/AdMelSpectrogram.hpp
+++ b/source/use_case/ad/include/AdMelSpectrogram.hpp
@@ -60,8 +60,8 @@
         virtual bool ApplyMelFilterBank(
                 std::vector<float>&                 fftVec,
                 std::vector<std::vector<float>>&    melFilterBank,
-                std::vector<int32_t>&               filterBankFilterFirst,
-                std::vector<int32_t>&               filterBankFilterLast,
+                std::vector<uint32_t>&               filterBankFilterFirst,
+                std::vector<uint32_t>&               filterBankFilterLast,
                 std::vector<float>&                 melEnergies) override;
 
         /**