UnsatisfiedLinkError on Android when using executables in cmake subprojects

I have a cmake project with an executable, and a subproject with a lib and an executable. Building and running both projects works on desktop. However, when i deploy and run the subproject executable, then i get a linker error:

```
W System  : ClassLoader referenced unknown path:
E AndroidRuntime: FATAL EXCEPTION: qtMainLoopThread
E AndroidRuntime: Process: org.qtproject.example.submain, PID: 22663
E AndroidRuntime: java.lang.UnsatisfiedLinkError: dlopen failed: library "ld-android.so" not found: needed by /data/app/~~i6Y9JhhM8OCX8kiyI8YlVA==/org.qtproject.example.submain-9r4QsCFypiSVpdmVkhKF1A==/lib/arm64/libc.so in namespace classloader-namespace
E AndroidRuntime:     at java.lang.Runtime.load0(Runtime.java:929)
E AndroidRuntime:     at java.lang.System.load(System.java:1625)
E AndroidRuntime:     at org.qtproject.qt.android.QtNative$2.run(QtNative.java:229)
E AndroidRuntime:     at org.qtproject.qt.android.QtThread$2.run(QtThread.java:51)
E AndroidRuntime:     at org.qtproject.qt.android.QtThread$1.run(QtThread.java:25)
E AndroidRuntime:     at java.lang.Thread.run(Thread.java:1012)
```

I have attached a minimal example.

It's also funny, that running the executable from the parent project works at first, but breaks with the same error after running the subproject.