Move hidl shims to the vendor partition.

We need google shims on the vendor partition because they are providing
an implementation of a vendor defined interface. They were written by
google just as a courtesy/to make the transition easier. They're
basically a set for vendors to assemble their hal implementations
from.

Bug: 34135607
Test: marlin persist.hal.binderization on/off

Merged-In: I3f86c77c147514fe470f08088a66de312ae32d4e
Change-Id: I3f86c77c147514fe470f08088a66de312ae32d4e