[PATCH bpf-next v2 8/9] samples/bpf: update .gitignore

Update samples/bpf/.gitignore to ignore files generated when building
the samples. Add:

  - vmlinux.h
  - the generated skeleton files (*.skel.h)
  - the samples/bpf/libbpf/ directory, recently introduced as an output
    directory for building libbpf and installing its headers.

Signed-off-by: Quentin Monnet <redacted>
---
 samples/bpf/.gitignore | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/samples/bpf/.gitignore b/samples/bpf/.gitignore
index fcba217f0ae2..01f94ce79df8 100644
--- a/samples/bpf/.gitignore
+++ b/samples/bpf/.gitignore

@@ -57,3 +57,6 @@ testfile.img
 hbm_out.log
 iperf.*
 *.out
+*.skel.h
+vmlinux.h
+libbpf/

-- 
2.30.2