[vts-core] add VtsKernelKheaders and VtsKernelLoopConfigTest to vts-core

Bug: 142397658
Test: $atest vts_kernel_kheaders
      $atest vts_kernel_loopconfig_test
Change-Id: Ie77b202d631a63fa8c73bb3a0c9e1830953790a7
2 files changed