port: set default opt level to -Og for now (see #529)

CMakeLists.txt

@@ -151,6 +151,11 @@ include_directories("${CMAKE_SOURCE_DIR}/src/lib/ultra/audio")
 include_directories("${CMAKE_SOURCE_DIR}/port/include")
 include_directories("${CMAKE_BINARY_DIR}/port/include")
 
+# Set Release optimization to -Og until I fix the -O2 issues
+if(NOT (CMAKE_BUILD_TYPE STREQUAL "Debug"))
+  add_compile_options(-Og)
+endif()
+
 # Common CFLAGS
 add_compile_options(
   -fno-inline-functions