Remove unnecessary require for libufdt_verify.

libufdt_verify is listes as a required module for ufdt_verify_overlay_host,
but since it's a static library, nothing can actually be required. When
requiring required modules to be defined, this throws an error.

Bug: 7456955
Test: Requiring required modules no longer complains about this.
Change-Id: Ia4385961d2c505c0f5c92cb43bd18b71804877de