[PATCH bpf-next] scripts/bpf: fix xdp_md forward declaration typo

[Andrii Nakryiko <andriin@xxxxxx>]

Fix typo in struct xpd_md, generated from bpf_helpers_doc.py, which is
causing compilation warnings for programs using bpf_helpers.h

Fixes: 7a387bed47f7 ("scripts/bpf: teach bpf_helpers_doc.py to dump BPF helper definitions")
Signed-off-by: Andrii Nakryiko <andriin@xxxxxx>
---
 scripts/bpf_helpers_doc.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/bpf_helpers_doc.py b/scripts/bpf_helpers_doc.py
index 15d3d83d6297..7df9ce598ff9 100755
--- a/scripts/bpf_helpers_doc.py
+++ b/scripts/bpf_helpers_doc.py
@@ -418,7 +418,7 @@ class PrinterHelpers(Printer):
 
             'struct __sk_buff',
             'struct sk_msg_md',
-            'struct xpd_md',
+            'struct xdp_md',
     ]
     known_types = {
             '...',
-- 
2.17.1