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/riscv64.h

@@ -4,6 +4,7 @@
 #ifndef UNICORN_ARCH_POSTFIX
 #define UNICORN_ARCH_POSTFIX _riscv64
 #endif
+#define use_idiv_instructions use_idiv_instructions_riscv64
 #define arm_arch arm_arch_riscv64
 #define tb_target_set_jmp_target tb_target_set_jmp_target_riscv64
 #define have_bmi1 have_bmi1_riscv64