Previously, we defined a list of kernel modules that should be
excluded from the vendor_boot image. (Those modules are loaded
from the vendor_dlkm partition during second stage init.)
Going forward, we import a list distributed by the kernel build that
explicitly defines the kernel modules to included in the vendor_boot
image.
Bug: 190652328
Change-Id: I8d67bfdaa121ddd82dc9e493c9b18cebdc05233c