koom-thread 回退栈unknown，稳定复现。无法获取初始化之后加载的so的虚拟内存映射信息。

[xiong0320]

修改官方thread demo将加载触发thread泄漏的so加载放在点击之后，稳定复现回退栈unknown的情况。
修改后代码如下：
mTest10Btn.setOnClickListener {
if (loadSoQuietly("native-leak-test")) {
triggerLeak(10 * 1000)
}
}
触发后输出如下：
2022-04-27 19:09:40.186 16272-16423/com.kwai.koom.demo I/ThreadLeakTest: tid: 16994
createTime: 242760806850934 Byte
startTime: 242760807118642
endTime: 242760807162132
name: test_thread_2
createCallStack:
#00 pc 0000007909f7604c
#1 pc 0000007909f77670
#2 pc 0000007909f773dc
#3 pc 0000007909f772bc
#4 pc 0000007909f77240
#5 pc 0000007909f76f00
#6 pc 0000000000092474 /system/lib64/libc.so (__pthread_start(void*)+36) (BuildId: 464bb288ce09d53ee1392dd8e1156940)
#7 pc 00000000000239a8 /system/lib64/libc.so (__start_thread+68) (BuildId: 464bb288ce09d53ee1392dd8e1156940)