Stop injecting symbols into host bionic binaries

The host bionic bootstrapping no longer needs an injected symbol.
Replace host_bionic_inject with host_bionic_verify that validates
the resulting binary, and add it as a validation dependency of the
binary.

Test: build and run host bionic binary
Change-Id: I3e303d2a164b6eef851bdc8075e6ee456c05b0a8