[lldb][Android] Add platform.plugin.remote-android.package-name

[lldb][Android] Add platform.plugin.remote-android.package-name

When LLDB fails to pull file from a package directory due to security
constraint, user needs to set the package name to
'platform.plugin.remote-android.package-name' property to run shell commands
as the package user. (e.g. to get file with 'cat' and 'dd').

https://cs.android.com/android/platform/superproject/+/master:
system/core/run-as/run-as.cpp;l=39-61;
drc=4a77a84a55522a3b122f9c63ef0d0b8a6a131627

Differential Revision: https://reviews.llvm.org/D152933