Create KernelLibcutilsTest and add it to vts-core.
VtsKernelLibcutilsTest just run the test of libcutils_test_static
and filter-out all of the test except AshmemTest#. We can just use the
include-filter to do the same thing.
Bug: 147789274
Test: atest KernelLibcutilsTest
Change-Id: Idb5cee3596bf063c2419f1a11055a17ad3075e26