verity_verifier is needed when verifying verity metadata.
Bug:
32173582
Test: `m otatools-package`
Change-Id: I63fdeb75cdca10ea38c1df978d64701acdd4c1db
$(HOST_OUT_EXECUTABLES)/e2fsck \
$(HOST_OUT_EXECUTABLES)/build_verity_tree \
$(HOST_OUT_EXECUTABLES)/verity_signer \
+ $(HOST_OUT_EXECUTABLES)/verity_verifier \
$(HOST_OUT_EXECUTABLES)/append2simg \
$(HOST_OUT_EXECUTABLES)/img2simg \
$(HOST_OUT_EXECUTABLES)/boot_signer \