Fix note_memtag bionic libraries in mixed builds

Required fixes:
  - Set MakeLinkType for libraries, even in mixed build mode.
  - Set snapshot header information to empty list, which passes
        validation logic for depending modules

Fixing these libraries also requires a Starlark change to
cc_library_static.bzl, which will be submitted separately.

Additionally, this adds better error messaging in the event that
output files are missing from a mixed-build library.

Test: USE_BAZEL_ANALYSIS=1 m libc
Test: USE_BAZEL_ANALYSIS=1 m runtime-module-sdk
Change-Id: Iad2c4d46359986fb0a43263292a15ed45fabbac7