[PATCH v2 0/5] tsan fixes

[Emilio Cota]

Changes since v1:

- call g_free_rcu on tb_jmp_cache directly, and call
  tcg_exec_unrealizefn after calling cpu_list_remove(cpu)

- add patch to de-const qemu_spin_destroy

- remove wrappers for qht_do_if_first_in_stripe

Thanks,
                Emilio