samples/bpf: Fix typo in README

Fix 'cofiguration' typo in BPF samples README.
Signed-off-by: Kang Minchul <tegongkang@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20221030180254.34138-1-tegongkang@gmail.com

samples/bpf/README.rst

@@ -87,7 +87,7 @@ Cross compiling samples
 -----------------------
 In order to cross-compile, say for arm64 targets, export CROSS_COMPILE and ARCH
 environment variables before calling make. But do this before clean,
-cofiguration and header install steps described above. This will direct make to
+configuration and header install steps described above. This will direct make to
 build samples for the cross target::
 
  export ARCH=arm64