Move BpfUtils -- move kernelVersion code to its own header

Move kernelVersion and isAtLeastKernelVersion to a local kernelversion.h,
since we cannot use bpf_headers' version of BpfUtils.

Bug: 202086915
Bug: 157552970
Test: builds
Change-Id: I83149b76cc5125991bdb52ce6160c497eb52b48b
2 files changed
tree: 5f056205c9c8243b2d5d75b542c1a58a8375218d
  1. staticlibs/