Support more variables for "debuggable".

Enhance bp feature to support
"product_variables.debuggable.exclude_static_libs" and
"product_variables.debuggable.jni_libs".

Bug: 325857852
Test: lunch akita-trunk_staging-userdebug && m ConnectivityMonitor
Change-Id: Iae843af2d41ec7754812a0b89a7ebc791c58e099