The following files are generated after building /selftests/bpf/ and
should be added to .gitignore:

	- libbpf.pc
	- libbpf.so.*
Signed-off-by: NKelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>