[dev] compile CA branch error with Android ndk

[Han-Lin Li]

currently CA branch get compile error with Android ndk.

The first problem is Android ndk didn't support stoi
this can be fixed by remove
"SConscript('compatibility/cpp11_compat.scons')" from
build_common/android/SConscript

The second problem is
resource/csdk/connectivity/common/src/umutex.c:27:18: fatal error:
glib.h: No such file or directory
 #include <glib.h>

How can I fix the second problem?