Propagate runtime_libs from Soong to Make

Write the list of a module's runtime-required libraries to the
`LOCAL_RUNTIME_LIBRARIES` Makefile variable defined for each module.
This enables downstream tools to correctly set up the runtime environment
for execution.


Bug: 215243373
Test: out/soong/Android-aosp_cf_x86_64_phone.mk

Change-Id: Ia64a75cfba27af0202973d749d02620b355ec802