Fix some release build warnings

lib/opus/CMakeLists.txt

@@ -356,6 +356,7 @@ if(OPUS_FIXED_POINT)
   add_sources_group(opus silk ${silk_sources_fixed})
   target_include_directories(opus PRIVATE silk/fixed)
   target_compile_definitions(opus PRIVATE FIXED_POINT=1)
+  target_compile_options(opus PRIVATE -Wno-stringop-overflow)
 else()
   add_sources_group(opus silk ${silk_sources_float})
   target_include_directories(opus PRIVATE silk/float)

lib/opusfile/CMakeLists.txt

@@ -5,7 +5,7 @@ idf_component_register(
   SRCS src/info.c src/internal.c src/internal.h src/opusfile.c src/stream.c
   INCLUDE_DIRS "include"
   REQUIRES "ogg")
-target_compile_options("${COMPONENT_LIB}" PRIVATE "-DOP_FIXED_POINT")
+target_compile_options("${COMPONENT_LIB}" PRIVATE "-DOP_FIXED_POINT" "-Wno-maybe-uninitialized")
 
 set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)