Fix bugs in signal processing functions

[Mr-JingShi]

Patrons在信号处理这块有点问题：
xhook和Patrons都针对SIGSEGV做了特殊处理，用来防止自己的core dump扩散到外面。外面的信号被xhook或者Patrons捕获到时会调用sigaction把old信号处理函数重新注册成新的信号处理函数（等同放弃了自己的信号保护机制），

按代码信号处理函数注册时机来说，如果Patrons代码块的信号处理函数捕获到xhook代码块的SIGSEGV，Patrons代码块判断不是自己内部的便放弃了自己的信号处理函数并把xhook的信号处理函数注册成新的信号处理函数，最终会触发了xhook的信号处理函数，程序不会崩溃，程序执行一段时间后，如果Patrons代码块发出了SIGSEGV信号，SIGSEGV信号会被xhook的信号处理函数处理，程序就崩溃了。并没有做到杜绝因为Patrons崩溃而造成APP崩溃。

参考Android处理方案，直接调用旧的信号处理函数即可。
https://cs.android.com/android/platform/superproject/+/master:external/gwp_asan/gwp_asan/optional/segv_handler_posix.cpp

回归机型：
Android 12
ONEPLUS LE2110
SAMSUNG SM-A217F

Android 11
XIAOMI M2102J2SC
OPPO CPH2067
GOOGLE Pixel 4 XL

Android 10
BLACKSHARK SHARK KLE-A0
HUAWEI ANA-NX9
SAMSUNG SM-A202F

Android 9
XIAOMI MI 8
VIVO V1809A
MOTOROLA moto g(6)

Android 8.1
XIAOMI POCOPHONE F1
HUAWEI COR-AL10
MEIZU M1816

Android 8.0
MOTOROLA moto e5 play
HUAWEI AUM-L33
HUAWEI BLA-L29

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