Expose binder stability for debugging in dumpsys

See if a service is coupled with the system/core build variant or build
variant (or if the service has 'vintf' stability - meaning it is used as
a HAL). This will also print additional information about the version of
the binder wire protocol that is being used by this object (currently
everything uses the same version - this may be the case for a while).

Fixes: 184062810
Test: dumpsys_test
Test: manually running 'dumpsys --stability' and 'dumpsys --help'
Change-Id: Ia9f1d011ef28a9d62a3076fa497ebb33ed53fe0a