NetBpfLoad: log on non-LTS or too old LTS kernel version

minimum versions chosen to match:
  //system/netd/tests/kernel_test.cpp
  //kernel/tests/net/test/kernel_feature_test.py

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ife6900333d97181765460c16676172bf05f8fd5f
1 file changed