Blacklist some vector functions for CFI.

This CL blacklists some vector functions (construct, copy, splat,
move) that use reinterpret_cast on freshly allocated memory (where the
object doesn't exist yet). This is technically correct, but not
friendly for CFI, which enforces stricter checking to catch type
confusion errors. Blacklisting these specific functions from CFI does
not cause an appreciable coverage loss though, so this should be fine.

Bug: 36219323
Test: Builds and boots, and the reinterpret error goes away on CFI builds.
Test: All 98 libutils_tests pass
Change-Id: I4944b179116bb1e1608d92697e95e182d8c0ac9f