Support building on Android arm aarch64 x86 x86_64

1. Add cmake support in CMakeLists.txt according to https://developer.android.com/ndk/guides/other_build_systems

2. Resolve symbols errors

3. Backport fixes from 438ed42311

   > QEMU relies on two optimization for ppc64 and arm:
   >
   > 1. if(0) /* optimized code */
   > 2. assert(0); /* optimized code */
   >
   > But the assert on mingw32 doesn't have noreturn attribute which prevents
   > the second optimization and some code is reverted to the original code
   > to fit in the first optimization.
   >
   > The assert implementation is copied from glib as qemu did.

   Unfortunately, NDK also doesn't have an assert implementation qemu prefers.

qemu/include/qemu/osdep.h

@@ -154,7 +154,8 @@ struct uc_struct;
  * code that is unreachable when features are disabled.
  * All supported versions of Glib's g_assert() satisfy this requirement.
  */
-#ifdef __MINGW32__
+// Unfortunately, NDK also has this problem.
+#if defined(__MINGW32__ ) || defined(__ANDROID__)
 #undef assert
 #define assert(x)  g_assert(x)
 #endif