Fixed the following bugs
Issue 21145276
Issue 21144884
Issue 21181133
Issue 21181134
Decoder now returns error if the level in stream is higher than level at init
Change-Id: I8892c62bd98f7854d046510330c05a1e9ca826b2
Resolved warnings seen in x86 modules
Fixed alignment of few modules
Updated comments in few arm modules for consistency
Fixed warnings seen in clang build
Change-Id: I0623169b5e84a6a6f09c3d2212e754101272f5e9