Do not instrument the implementation library of sdk_library

Currently, the implementation library of the java_sdk_library is always
being instrumented due to the issue described in b/159241638.

With https://r.android.com/3079425, all compilation actions of the
java_sdk_library is delegated to the implementation library.
Consequently, this has caused all java_sdk_library to be instrumented,
leading to coverage builds failing due to double instrumentation (i.e.
instrumenting an already instrumented class file). In order to prevent
such error, this change modifies the property of the implementation
library to not instrument during coverage builds.

This change also copies some additional java library properties from
that of the implementation library to the top level sdk library, in
order to ensure that all non-null androidmk entries are correctly
reflected in that of the sdk library.

Test: lunch husky-trunk_staging-userdebug && EMMA_INSTRUMENT=true EMMA_INSTRUMENT_FRAMEWORK=true m droid dist
Bug: 340174053
Bug: 341170242
Change-Id: I9d8f1c190205fa7a827649961ba5222293a945ad