extend syscall minijail for clang code coverage am: c8766043 am: 8ae969d2...

extend syscall minijail for clang code coverage am: c8766043 am: 8ae969d2 am: 11cb2b3e am: 0b878a93

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/12137689

Change-Id: Ic8217114f7b0bdaebd54f3238d08fa680a075289